RU76464U1 - SHIP RADAR COMPLEX - Google Patents

Abstract

The utility model relates to radar, namely, devices for monitoring the health of radar systems and can be used in the equipment of the repair shop for monitoring and testing active-passive radar systems.

The objective of the utility model is to increase the reliability of the radar system.

The essence of the proposed technical solution lies in the fact that in the ship's radar complex containing a combined antenna device, including a block of slowly rotating (MB) antennas, kinematically connected with a rotation drive and stabilization drives, a radar station, which includes a high-frequency device ( RF) radar switching based on waveguide switches, which are connected respectively to the antenna of the third band of the MB antenna unit, with a pulse transceiver property and, through the isolation device, with transmitting and receiving devices of linearly frequency modulated (LFM) signals, a radar signal processing and information conversion device, the first information input of which is connected to the output of the LFM signal receiving device, and a radar indication and control device, as well as passive radar station (RLS), which includes an antenna device for detecting RLS, the outputs of a block of rapidly rotating (BW) antennas are connected through a bandpass filtering and amplification unit with the input signals of the third, fifth and sixth ranges of the amplification device and RF switching of the radar, the second input of the signals of the fifth and sixth range of which is directly connected to the corresponding antenna of the MB antenna unit, the second input of the signals of the third range is connected to the corresponding waveguide switch of the radar RF switching device, and the outputs connected to the inputs of the respective PRLS receivers, the outputs of the signals of the first, second and third tones of which, detected during threshold processing, are switched to corresponding device inputs

conversion, indication and control of the radar, and the outputs of the video analysis signals are switched to the corresponding inputs of the conversion, indication and control of the radar and analysis device of the radar and data output, which is connected to the output of information data about the goals of the signal processing and information conversion radar, the second information input of which connected with the output of the video pulses of a pulse transceiver device through a synchronization and switching device included in the display and control device radar, which also contains a video monitoring device connected to the output of the television video signal of the signal processing and information conversion radar, a mode control panel, at the corresponding outputs of which channel switching signals of the RF radar switching device and control signals of the modes of the pulse transceiver and transmitting and receiving devices are generated LFM signals, a block of zero sensors, the information inputs of which receive on-board and pitching signals, and on the outputs form the signals of the initial installation of the stabilization drives, the amplification and conversion unit, the outputs of which are connected to the control inputs of the rotation drive and the stabilization drives, and the inputs of the error signals are connected to the corresponding outputs of the stabilization drives and the output of the rotation drive control unit, which is connected to the digital angle conversion unit, to the corresponding inputs of which a signal of the current angle of rotation of the MB antenna from the rotation drive and signals of the course and speed of the ship are received, and with a communication center through which the signal of increment of the angle of rotation of the MB antenna is transmitted to the corresponding input of the radar information processing device and radar information, the navigation data code is transmitted to the corresponding inputs of the radar conversion, indication and control device and the radar signal processing and information conversion device, and the current angular code the position of the MB antenna from the output of the communication unit and the zero signal from the information output of the drive of the BV antenna unit are fed to the corresponding inputs of the device BRAZOVA display, indication and control of the radar, introduced the first simulator of reflected signals, connected instead of the antenna path to the signal output of the transmitting device chirp signals and the signal input of the receiving device chirp signals, the second simulator of reflected signals connected to the control input-output of a pulse transceiver, radar noise generator connected to the control input of the receiving

chirp signal devices, a PRLS noise generator connected to a control antenna, and also built-in monitoring devices in a pulsed transceiver, transmitters and receivers of chirp signals and PRLS receivers, in addition, a chirp signal transmitter is configured to generate pulsed probing signals, and the receiver of the chirp signals is configured to generate pulsed video signals that are transmitted to the second information input of the signal processing device and converting radar information through a synchronization and switching device in a radar indication and control device, which further comprises a drive mode switching unit, the output of which is connected to an input of a rotation drive control unit, and the inputs are connected to outputs of signals of setting rotation modes of the control panel and the control panel included in the device conversion, display and control of the radar.

Description

The utility model relates to radar and can be used to detect and measure coordinates and motion parameters of surface targets, to ensure navigation of the carrier ship, and also to determine the coordinates of surface objects from their own radio emission.

Known radar station (radar) circular view [1], containing a transmitter and a receiver connected by an antenna switch with an antenna, which is kinematically connected with the rotation drive and the sensor of the angular position of the antenna. In this case, the output of the receiver is connected to a device for instrumental data acquisition, which includes a preselector and a converter of measured coordinates into digital codes connected in series, which is connected to the information input of a digital computer. Synchronization of radar devices is carried out according to the synchronizer signals.

A disadvantage of the known analogue is the low stealth of the radar, due to the need to increase the power of the emitted pulses to increase the potential of the station, as well as the fact that this radar is not able to detect objects by their own radiation.

Also known are passive radar stations (RLS) [2], designed to detect sources of radio emissions, in particular, from radiation installed at radar sites. This radar determines the direction (bearing) to the radiation source, and can also determine the sensing period and the viewing period.

The PRLS includes a rotating band antenna connected to a direct amplification receiver connected to the first “comb” of broadband bandpass filters connected to mixers, the second inputs of which are fed harmonic oscillations from tunable local oscillators. The outputs of the mentioned mixers are connected to the second “comb” of bandpass filters, the total passband of which is equal to the passband of one filter of the first “comb”. The outputs of the filters of the second "comb" are connected to the inputs of the second group of mixers, to which the second group of tunable local oscillators is connected. Outputs

the above-mentioned mixers are connected to the inputs of the third “comb” of filters, the total passband of which is equal to the passband of one filter of the second “comb”, and the outputs of the filters of the third “comb” are connected to frequency analysis equipment.

Such a structural implementation of this PRLS allows you to quickly determine the frequency of the sources of radio emissions and direction to them.

The disadvantage of radar is that it does not allow you to determine the coordinates and motion parameters of surface objects, which is required in the radar target designation.

The closest analogue adopted for the prototype of the proposed utility model is a shipborne radar system [3].

The prototype complex comprises a combined antenna device including a slowly rotating (MB) antenna unit kinematically connected to a rotation drive and stabilization drives, a radar station, which includes a high-frequency (RF) radar switching device based on waveguide switches , a pulsed transceiver device, a transmitting device of quasicontinuous linearly frequency-modulated (LFM) signals and a receiver of LFM signals associated with the MB antenna unit via a device RF radar switching device, a radar signal processing and information conversion device, the first information input of which is connected to the output of the chirp signal receiving device, and a radar indication and control device, as well as a passive radar station, which includes an antenna radar detection device, including a block of rapidly rotating (BW) antennas connected to the inputs of the bandpass filtering and amplification unit, the corresponding outputs of which are connected to the first inputs of the signals of the third, fifth and sixth dia the ranges of the amplification device and RF switching of the radar, the second inputs of the signals of the fifth and sixth ranges of which are directly connected to the corresponding output of the antenna unit MB, the input of the signals of the third range is connected to the corresponding input-output of the antenna unit MB through the RF radar switching device, and the outputs of the amplification and RF PRLS switching is connected to the inputs of the corresponding PRLS receiving devices, the outputs of the signals of the corresponding tones in the reception range of which, detected during threshold processing, are switched to the corresponding etstvuyuschie inputs conversion device, the display and control CLDP, and outputs the video analysis signals are switched to respective inputs of a conversion device, the display and control unit and CLDP CLDP and outputting analysis

data, which is connected to the output of information data on the goals of the radar signal processing and information conversion device, the second information input of which is connected to the output of the video pulses of the pulse transceiver device through the synchronization and switching device, which is part of the radar display and control device, which also contains a video monitoring device, connected to the output of the television video signal of the signal processing and radar information conversion device, mode control panel, n the corresponding outputs of which the channel switching signals of the RF switching device of the radar and the control signals of the pulsed transceiver device and the transmitting and receiving devices of the LFM signals, the block of zero sensors, the information inputs of which the on-board and pitching signals are received, and the outputs of the initial installation of stabilization drives are formed at the outputs , the amplification and conversion unit, the outputs of which are connected to the control inputs of the rotation drive and stabilization drives, and the inputs the mismatch signals are connected to the corresponding outputs of the stabilization drives and the output of the rotation drive control unit, which is connected to the digital angle conversion unit, to the corresponding inputs of which the signal of the current rotation angle MB of the antenna from the rotation drive and the heading and speed signals of the ship, and to the communication unit, are transmitted through which to the corresponding input of the signal processing and information conversion device of the radar signal is transmitted increment of the angle of rotation of the MB antenna, to the corresponding inputs of the device formation, indicating and control CLDP and signal processing apparatus and converting the information radar transmitted navigation data code, and the code of the current angular position MB antenna output from communication unit and the signal from the rotation sensor output BV antennas are coupled to respective inputs of the conversion device, the display and CLDP control.

The combination of radar and radar in the complex provides the detection and measurement of coordinates and motion parameters of targets and makes it possible to detect objects by their own radio emission, and the use of the chirp of the probe signal provides stealth and noise immunity of the complex.

The disadvantage of the complex on the prototype is the lack of means of monitoring its health, which reduces the reliability of the complex.

The objective of the utility model is to increase the reliability of the radar system.

The essence of the proposed technical solution lies in the fact that in the ship's radar complex containing a combined antenna device, including a block of slowly rotating (MB) antennas, kinematically connected with a rotation drive and stabilization drives, a radar station, which includes a high-frequency device ( RF) radar switching based on waveguide switches, which are connected respectively to the antenna of the third band of the MB antenna unit, with a pulse transceiver property and, through the isolation device, with transmitting and receiving devices of linearly frequency modulated (LFM) signals, a radar signal processing and information conversion device, the first information input of which is connected to the output of the LFM signal receiving device, and a radar indication and control device, as well as passive radar station (RLS), which includes an antenna device for detecting RLS, the outputs of a block of rapidly rotating (BW) antennas are connected through a bandpass filtering and amplification unit with the input signals of the third, fifth and sixth ranges of the amplification device and RF switching of the radar, the second input of the signals of the fifth and sixth range of which is directly connected to the corresponding antenna of the MB antenna unit, the second input of the signals of the third range is connected to the corresponding waveguide switch of the radar RF switching device, and the outputs connected to the inputs of the respective PRLS receivers, the outputs of the signals of the first, second and third tones of which, detected during threshold processing, are switched to the corresponding inputs of the radar conversion, display and control device, and the video analysis signal outputs are switched to the corresponding inputs of the radar conversion, display and control device and the radar analysis and data output device, which is connected to the output of information data about the goals of the radar signal processing and information conversion device, the second the information input of which is connected with the output of the video pulses of a pulse transceiver device through a synchronization and switching device included in av radar indication and control device, which also contains a video monitoring device connected to the television video signal output of the radar signal processing and information conversion device, a mode control panel, at the respective outputs of which channel switching signals of the radar RF switching device and control signals of the pulse transceiver device and transmitting

and receiving devices for chirp signals, a block of zero sensors, the information inputs of which receive on-board and pitching signals, and the outputs are used to form the signals of the initial installation of stabilization drives, a gain and conversion unit whose outputs are connected to the control inputs of the rotation drive and stabilization drives, and the inputs the mismatch signals are connected to the corresponding outputs of the stabilization drives and the output of the control unit of the rotation drive, which is connected to the digital angle conversion unit, on the corresponding inputs of which the signal of the current angle of rotation of the MB antenna is received from the rotation drive and the heading and speed signals of the ship, and with the communication unit through which the signal of the angle of rotation of the MB antenna is transmitted to the corresponding input of the radar information processing device, to the corresponding inputs of the conversion device , display and control of the radar and signal processing devices and information conversion radar transmitted code navigation data, and the code of the current angular position of the MB antenna with Yes, the communication unit and the zero signal from the information output of the drive unit BV antennas are fed to the corresponding inputs of the conversion device, display and control PRLS, introduced the first simulator of reflected signals, connected instead of the antenna path to the signal output of the transmitting device of the chirp signals and the signal input of the receiving device chirp signals the second simulator of the reflected signals connected to the control input-output of the pulse transceiver device, the radar noise generator connected to the control the input device of the receiver of the chirp signals, the PRLS noise generator connected to the control antenna, and also built-in control devices in a pulse transceiver, transmitting and receiving devices of the chirp signals and receivers of the radar, in addition, the transmitting device of the chirp signals is configured to generate pulse probing signals, and the receiver of the chirp signals is configured to generate pulsed video signals that are transmitted to the second information input of the device va signal processing and converting the information through radar device synchronization and switching in radar device indicating and control, which further comprises a switching drive modes, whose output is connected to the input of the rotation drive control unit and the inputs connected to the outputs reference signals drive modes

rotation of the control panel modes and the control panel, which is part of the conversion device, display and control PRLS.

The essence of the utility model is illustrated by drawings, on which are presented:

FIG. 1 - structural and functional diagram of a ship's radar system,

FIG. 2 - structural and functional diagram of a pulse transceiver device,

FIG. 3 - structural and functional diagram of the transmitting device chirp signals,

FIG. 4 - structural and functional diagram of the receiving device chirp signals,

FIG. 5 is a structural-functional diagram of a radar indication and control device,

FIG. 6 is a structural and functional diagram of a device for processing signals and converting radar information,

FIG. 7 is a structural-functional diagram of the receiving device of the radar,

FIG. 8 is a structural and functional diagram of a device for converting, indicating and controlling a PRLS,

FIG. 9 is a structural and functional diagram of a device for analyzing radar and data output.

In FIG. 1 structural and functional diagram of the ship's radar system adopted the following notation:

1 - combined antenna device,

2 - pulse transceiver device

3 - transmitting device chirp signals,

4 - receiving device chirp signals,

5 - device high-frequency RF switching radar,

6 - radar indication and control device,

7 - a device for processing signals and converting radar information,

8 - antenna device for detecting radar,

9 - device amplification and RF switching PRLS,

10 - the first receiving device PRLS, providing signal processing III frequency range,

11 is a second receiving device PRLS, providing signal processing V frequency range,

12 - the third receiving device PRLS, providing signal processing VI and IV frequency ranges,

13 - device conversion, display and control PRLS,

14 - device for analysis of radar and data output,

15 - block MB antennas,

16 - block stabilization drives,

17 - rotation drive,

18 - block BV antennas with a rotation drive,

19 - block bandpass filtering and amplification,

20 - control antenna

21 - PRLS noise generator,

22 - the first simulator of reflected signals, made in the form of a hypersonic delay line reflective type

23 - isolation device

24 - echo camera (second simulator of reflected signals),

25 - modulator

26 - bandpass low pass filter,

27, 28 - the first and second decoupling devices PRLS,

VP ₁ VP ₂ , VP ₃ - the first, second and third waveguide switches,

P _III , P _V , P _VI - receive channels of the III, V, VI, frequency bands, respectively,

PF _III , PF _IV , PF _v , PF _VI - bandpass filters of the III, IV, V, V, VI frequencies, respectively,

UHF _III , UHF _IV , UHF _V , UHF _VI - high-frequency amplifiers of the 3rd, 4th, 4th, 5th, 6th frequency ranges, respectively,

IMPK ₁ IMPK ₂ - the first and second interface lines of serial channels,

TIPK ₁ TIPK ₂ - the first and second main transformer pulse serial channels.

According to FIG. 1 combined antenna device 1, contains a block 15 of slowly rotating antennas kinematically connected with stabilization (leveling) drives

block 16 and drive 17 rotation. Information outputs of the stabilization drive unit 16, (mismatch signals of the roll angles Δθ and trim Δψ and the information output of the rotation drive 17, on which the signal q _{A of the} angular position of the antenna is generated, and the control inputs of the unit 16 and drive 17, to which control voltages are applied (Ex. θ, Exercise ψ, Exercise q _A ) are connected to the corresponding inputs and outputs of the radar indication and control device 6.

The antenna in block 15, which receives signals of the V and VI bands, is connected to the input of the decoupling device 28 in the amplification and RF switching device of the RLS, and the transceiver antenna of signals of the III range is connected to the first input-output of the RF switching device 5, which is the first shoulder of the waveguide VP switch ₁ . The second arm of the VP ₁ , forming the fourth output of the device 5, is connected to the input of the band-pass filter (PF _III ) of the device 9, and the third is connected to the first arm of the VP ₃ . The second arm of the VP _{3 is} connected to the first arm of the VP ₂ ; and the third, forming the second input-output of the device 5, is connected to the signal input-output of the transceiver 2, the control input-output of which is connected to the echo camera 24. The second shoulder of the VP _{2 is} connected with the first simulator 22 of the reflected signal, and the third, forming the third input-output of the device 5, through the isolation device 23 is connected to the signal output of the transmitting device 3 and the signal input of the receiving device 4 of the LFM signals, the inputs of the local oscillator signals of which (one the second communication line - “Heter.”) and the synchronization inputs (indicated by one communication line - “Sync.”) are connected to the corresponding outputs of the transmitting device 3.

The control inputs of the waveguide switches of the device 5 are connected to the output of the channel switching signals VP "of the radar display and control device 6, which also generates, as will be discussed below, the control signals of the modes of the transceiver 2, transmitting and receiving devices 3 and 4 (indicated by the communication lines" Ex. 2, "“ Ex. 3 "," Exercise dir. 4 ").

The outputs of the serviceability signals (“Repair”) of devices 2, 3, 4 are connected to the corresponding inputs of the radar display and control device 6, and the inputs of the latter, to which the signals of the angles θ and ψ of the side and keel pitching and signals K ”,“ V ”of the course and speed of their ship, are connected to the corresponding ship systems (gyro-pointer and lag).

The output of the video pulses "Video 2" formed by the transceiver 2, and the output of the video pulses "Video I" formed by the receiver 4 in the pulsed mode of the transmitting device 3 are connected to the corresponding inputs of the radar display and control device 6, which switches them to the output "Video 6 "connected to the second information input of the device 7 for signal processing and information conversion, the first information input of which is connected to the output" Video N "of the receiving device 4.

The outputs of device 7, on which a television video signal and television scan synchronization signals (indicated by one “Video TV” communication line) are formed, are connected to the corresponding inputs of the radar display and control device 6. The output of the device 6, on which the code of the current bearing MB of the antenna “Code _AMB ” is generated, is connected to the input of the device 13 for converting, indicating and controlling the radar control system, the output on which the pulses “+ q, - q, q ₀ ” of the increment of rotation angles MB antennas are connected to the corresponding input of the radar information processing device 7 and information conversion, and the output on which the navigation data code “NK Code” (course, speed and track angle) is generated is connected to the corresponding inputs of the signal processing and information conversion device 7 and radar, a conversion device 13, the display and control device 14 and CLDP analysis and outputting data CLDP.

The output of the device 7, on which information data (forms) of the targets detected by the radar are generated, is connected via the TIPK ₁ highway to the corresponding input of the PRLS analysis and data output device 14, the outputs of the latter, on which the data are generated for display on the sign boards, are connected via interface lines serial channels (IMPK ₁ and IMPK ₂ ) with a radar display and control device 6 and with a radar conversion, display and control device 13, and the output of the device 14, on which form data is generated Ulyarov target designation (TSU), connected via the TIPK ₂ highway with the consumer (ship weapon control system).

Antenna detection device 8 (RLS), contains a block 18 of BW antennas with a rotation drive, a control antenna 20 connected to the output of the RPS noise generator 21, and a four-channel bandpass filtering and amplification block 19. The antenna output of the Vth and VIth ranges of block 18 is connected through an isolation device 27 to the inputs of the bandpass filters PF _V and PF _VI whose outputs are connected respectively

with UHF _V and UHF _VI . The receiving channel of the III-th range of the antenna device 8 contains a band-pass filter PF _III whose input is connected to the antenna of the III-th range of block 18, and the output is connected to UHF _III . The receiving channel IV of the range of the antenna device 8 is characterized by the additional possibility of detecting continuous signals and contains a series-connected bandpass filter (PF _IV ) connected to the antenna of the IV band of unit 20, a modulator 25, UHF _IV, and a low-pass bandpass filter (LPF) 26.

The outputs of UHF _V , UHF _VI and UHF _III of the bandpass filtering and amplification unit 19 are connected to the first input of the channel selectors P _V , P _VI and P _{III of the} amplification and RF switching device 9 of the PRLS, the second inputs of which are passed bandpass filtered in PF _V , PF _VI and PF _III and amplified UHF _V , UHF _VI and UHF _III signals received by the MB antennas of block 15.

The control inputs of the channel switches P _V , P _VI and P _{III of the} device 9, as well as the control input of the noise generator 21 of the antenna device 8 are connected to the outputs of the device 13 conversion, indication and control of the radar, on which the signals PC ", and the signal" On GS ", respectively.

The input of the device 13, which receives the signals of the current angular position of the BV antennas “0 φ _BV ” (a sequence of zero count pulses generated when the electric axis intersects the zero mark), is connected to the information output of the drive unit 18 of the BV antennas.

The outputs of the channel switches P _III , P _V and P _{VI of the} PRLS amplification and RF switching device 9 are connected respectively to the inputs of the first and second receiving devices 10, 11 and the first input (signal processing channel of the VIth range) of the third PRLS receiving device 12, the second input (signal processing channel of the IV range) which is connected to the output of the low-pass filter 26.

The outputs of the receiving devices 10, 11, on which the video signals of the analysis of the first, second and third tones “1BA”, “2VA”, “3VA” are generated, are connected, as will be shown below, with the input of the linear switch of the second stage in the device 12, from the output of which video analysis signals of all four ranges according to the polling signals generated in the device 13 are transmitted to its corresponding input, as well as to the input of the PRLS analysis device 14 and data output. The outputs of the receiving devices 10, 11, 12, on which the video signals of the first, second and third tones “1t”, “2t”, “3t” are detected in the processing range of the corresponding

the receiving device, are switched to the corresponding inputs of the device 13 according to the polling signals generated by the latter, and the outputs of the device 13, on which the modulation signal is generated (control voltage "Ex. Mod.") and the compensation signal of spurious amplitude modulation of noise "Mod.", are connected respectively to the control input of the modulator 25 and the compensation input of the receiving device 12 PRLS.

The outputs of the receiving devices 10, 11, 12, on which the “Isp.” Health signals are generated, are connected to the corresponding input of the PRLS conversion, display and control device 13, and the output of the latter, on which the limited video signals of the “1A limited.” Analysis are generated, is connected to the corresponding input of the device 14.

In FIG. 2 structural and functional diagram of the transceiver device 2 adopted the following notation:

29 - block switching modes

30, 31 - high-voltage power sources (VIP) - rectifiers with a nominal value of + 5000V and + 2000V, respectively,

32, 33 - modulation blocks of the first and second channels of the transmitter,

34, 35 - magnetron generators of the first and second channels of the transmitter,

36 - block directional couplers,

37, 38 - the first and second blocks of ferrite switching valves (FPV),

39 - slotted bridge,

40 - directional coupler,

41 - waveguide-coaxial transition,

42 - load (antenna equivalent),

43 - waveguide switch

44 - waveguide section with a sensor for monitoring radiated power (DCM), made in the form of a section of the waveguide, along the wide wall of which is inserted a communication pin connected to an amplifier,

45 - load

46 - arrester

47 - high frequency amplifier (UHF),

48 - bandpass filter,

49 - ferrite valve

50 - block attenuators,

51 - block slotted bridges,

52 - block mixers

53 - block automatic adjustment of the frequency of the local oscillator (AFC),

54 - local oscillator

55 - ferrite valve

56 - slotted bridge with a splitter,

57 - a preliminary amplifier of an intermediate frequency (UPCH),

58 - the main OCHR,

59 - control unit,

60 - pulse generator,

61 - high-frequency generator with built-in attenuator.

The transmitter of the transceiver device 2 provides the formation of pulse sounding signals in the modes of "Channel I" and "Channel II", differing in the level of output power.

The transmitter contains a circuit from a series-connected high-voltage rectifier 30, a first modulation unit 32 controlled by a “Start P” signal coming from the device 6, and a first magnetron generator 34, and also a circuit from a series-connected high-voltage rectifier 31, a second modulation block 33 controlled by a signal "Start PI", formed by the first modulation unit 32, and the second magnetron generator 35.

The control inputs of the high-voltage rectifiers 30, 31 are connected to the corresponding outputs of the mode switching unit 29, the input signals of which are the commands “Channel I”, “Channel II” (switching on the first or second channel), “VN I”, “BH II” (switching on high voltage), “Radiation 2 Ant. / Equ "(switching the transmitter signal from the main path to load 40) and" Sector "(sector scanning of the antenna) coming from device 6.

The outputs of the magnetron generators 34 and 35 through the block 36 directional couplers are connected to the first and third taps (shoulders) of the block 37 FPV and to the inputs of the slot bridge 39, the output of which is connected to the first input of the slot bridge 56 with a splitter.

The second tap of the FPV block 37 is connected to the first tap of the FPV block 38, and the fourth is connected to the first tap of the directional coupler 40, the second tap of which through

the waveguide-coaxial transition 41 is connected to the echo chamber 24, the third is connected to the load 42, and the fourth to the third tap of the FPV block 38.

The second tap of the FPV block 38 is connected to the first tap of the waveguide switch 43, the third tap of which is connected to the load 45, and the second tap is connected to the second input-output of the radar switching device 5 by the path with the waveguide section 44, in which the radiated power control sensor is installed .

The control input of the waveguide switch 43 and the control inputs of the FPV blocks 37, 38 are connected to the corresponding output of the mode switching unit 31.

The fourth tap of the FPV block 38 through the arrester 46, which provides isolation of the transmitter and receiver, is connected to the input of the UHF 47. The output of the UHF 47 is connected through a series-pass bandpass filter 48, a ferrite valve 49, the attenuator block 50, and the slot bridge block 51 to the signal input of the mixer block 52 which is covered by the feedback circuit from the AFC unit 53 and the local oscillator 54, the output of which through a ferrite gate 55 is connected to the second input of the slotted bridge 56 with a splitter. The outputs of the slotted bridge 56 through the block 50 of the attenuators and the block 51 of the slotted bridges are connected to the heterodyne input and the input of the mixer AFC block 52 of the mixers.

The signal output of block 52 of the mixers through the preliminary control unit 57, controlled by the pulse "Zp. VARU ”(triggering temporary automatic gain control), connected to the input of the main amplifier 58, in which the received signal is amplified and converted to a video frequency. The pulsed video signals "Video 2", formed at the output of the main UPCH 58, are transmitted to the radar indication and control device 6.

The output of the control sensor of the radiated power of the waveguide section 44 is connected to the input of the control unit 59, the other input signals of which are the “BH” (high voltage) signal, issued by the device body through the relay contacts of the mode switching unit 29, and the “Control. UPCH ”, formed at the control output of the main UPCH 58.

The control unit 59 contains two identical channels for the conversion of pulse signals "DCM" and "Counter. UPCH ”, built on the basis of a comparator and pulse expander. The output signals of the conversion channels are combined in the first circuit

matches the delayed start delay signal “Start P”, and then combined with the signal “VN” in the second coincidence circuit, the output of which is formed the signal “Repair. 2 "serviceability of the transceiver 2.

In addition, the control equipment for checking the transceiver device 2 includes a sensitivity control device that includes a pulse generator 60 synchronized by the Start P signal, and a high frequency generator 61 with a built-in attenuator. The external modulation input of the generator 61 is connected to the output of the pulse generator 60, and its output is connected to the input of the UHF 47 through the waveguide switch 43.

In FIG. 3 structural and functional diagram of the transmitting device 3 chirp signals adopted the following notation:

62 - pathogen,

63 - block power amplifiers,

64.65 - the first and second chirp signal generators,

66 - shaper deviations,

67, 68 - the first and second frequency shift devices,

69 - synchronizer,

70 - multi-frequency generator

71 - the first transponder,

72 - directional coupler,

73 - the second transponder,

74 - diode modulator (DM),

75 - intermediate frequency generator (IF),

76 - driver of heterodyne signals,

77 - shaper-amplifier of bipolar pulses,

78 - control device,

79 - power adjustment unit (BRM),

80, 81 - the first and second power amplifiers made on traveling wave tubes,

82, 83 - the first and second pulse modulators,

84 - switching unit,

85 ₁ , 85 ₂ ; - control units of linearity of frequency modulation (FM) of the first and second generators of the chirp signals, respectively,

86 - power control unit,

87 - block control parameters of the synchronization pulses,

88 - block switching and combining signals health.

The transmitting device 3 operates in two modes. In the main mode of operation, the transmitting device 3 generates quasicontinuous frequency linearly modulated oscillations with tuning of the carrier frequency from package to package. In a pulsed mode of operation, the transmitting device 3 generates pulsed sounding signals with a fixed carrier frequency.

The transmitting device 3 consists of a driver 62 and a block 63 of power amplifiers, the output of which, forming the signal output of the device 3, is connected through the isolation device 23 to the third input-output of the RF radar switching device 5.

The causative agent 62 contains two generators 64 and 65, which generate modulated by amplitude LFM RF signals shifted in time relative to each other. Each of the generators 64, 65 is built on the basis of a tunable RF generator controlled by a control current generator, which, when received from the synchronizer 69 clock pulses "SI5" ("SI6") generates sawtooth pulses with increasing current linearly. Next, the output signal of the tunable generator is converted in the first frequency converter, made on the basis of a quartz local oscillator, and enters the second frequency converter, the operation of which is synchronized by "SI3" ("SI4") pulses.

Part of the power of the HF LFM signal generated by the first frequency converter is branched to the input of the AFC unit, in which the error signal used to adjust the frequency of the HF signal of the tunable generator is extracted and amplified.

In the second frequency converter, a frequency deviation is formed by limiting the duration of the parcel. In it, using the feedback loop from the blocks of the pulsed phase detector and the error signal amplifier, the phase-locked loop of the frequency tuning linearity is carried out, which consists in adjusting the frequency of the local oscillator of the second frequency converter. The operation of the feedback loop blocks is synchronized by pulses “SI1-1” (“SI1-2”), pulses “SI2-1” (“SI2-2”) and pulses “SI7” (“SI7a”).

The outputs of the generators 64, 65, which are the outputs of their second frequency converters, are connected to the inputs of the shaper 66 deviations, synchronized by pulses "SI3" ("SI4"). In 66 deviation shaper, built on the basis of multipliers, frequency dividers, mixers, and a deviation switch, LFM RF signals are generated with carrier frequencies in the input frequency band of the first frequency shift device 67 and frequency deviations W1, ..., W5, which are determined by control signals "Maud. 1 ", ...," Mod. 5 "coming from the radar indication and control device 6.

The output of the shaper 66 deviations is connected to the input of the first device 67 frequency shift, controlled by the signal "Off. mod. ”, which comes from the device 6 (in the pulse mode of operation of the device 3). The device 67 amplifies the output signal of the shaper 66 deviations with frequency stabilization.

Next, the output signal of the first frequency shift device 67 is supplied to the second frequency shift device 68, in which it is mixed with a fixed frequency signal of the master oscillator of the device 68.

The output of the second frequency shift device 68 is connected to the first input of the transponder 71, the second input of which through the frequency multiplier (x4) receives a signal from the multi-frequency generator 70, the frequency of which varies from package to package according to the law specified by the synchronizer 69 (sync pulses "SI8-1" , ..., "SI8-9").

The output signal of the transponder 71 with a frequency equal to the sum of the frequencies of the input signals is supplied to a directional coupler 72, from which part of the power is supplied to the output “Geter. 1 "connected to the receiving device 4, and the other part of the power is supplied to the first input of the second transponder 73, the second input of which is connected to the output of the driver of heterodyne signals 76, on which a continuous signal of the first intermediate frequency is generated. The input of the driver 76 is connected to the output of the intermediate frequency generator 75.

At the other outputs of the heterodyne signal driver 76, based on a three-channel microwave power divider, a modulating voltage generator, a frequency shift mixer, and a controlled key, “Heter. 2 "," Geter. 3 "and" Geter. 4 ", which are transmitted to the receiving device 4.

The differential frequency signal from the second transponder 73 is fed to the input of the diode modulator 74, where the transmitter is additionally locked

devices for the duration of the operation of the receiving device by means of bipolar pulses from the output of the driver-amplifier 77, the input of which is connected to the pulse output "SI10" of the synchronizer 69.

The synchronizer 69 generates synchronization pulses of the transmitting and receiving devices 3.4 and contains four blocks of the shapers of the clock pulses.

The first block generating pulses "SI1-1", "SI1-2", "SI2-1", "SI2-2" for generators 64, 65 chirp signals and pulses "f _KA " transmitted to the receiving device 4, is made on basis of a crystal oscillator and frequency dividers.

The second block that generates the sync pulses "SI3", "SI4", "SI7", "SI7a" for generators 64, 65, the sync pulses "IF-1", "IF-2" transmitted to the receiving device 4, and the control signal "SI counter. ”, transmitted to the input of block 87 for controlling parameters of synchronization pulses, consists of inverters and formers.

The third block, forming the sync pulses "SIV-1", ..., "SI8-9" for the multi-frequency generator 70, as well as pulses "SI9" for the power amplifier 63 and blanking pulses "SI10" used when the transmitter is in continuous operation radiation of LFM signals, consists of a controlled frequency divider, frequency dividers of 6 and 3, pulse shapers and a pseudorandom number generator.

The fourth block of the synchronizer, providing the formation of sync pulses "SI9" and "SI10" used when the transmitting device operates in a pulsed mode, as well as sync pulses "SIV" (start VARU), transmitted to the receiving device 4, as well as sync pulses "NOD" (initial countdown range), UIZP clock pulses (pre-emitting pulses of transmitter start-up) and TI8 clock pulses transmitted to the radar indication and control device 6, contains a quartz pulse generator, frequency dividers, a decoder and importer Lls.

The input of the decoder of the fourth block of the synchronizer 69 forms its control input according to the signal switching mode "Imp. ex. PRD ", which comes from the device 6, and is also connected to the control input of the driver 76 heterodyne signals.

The output of the diode modulator 74 is connected to the input of the first power amplifier 80 of the block 63, made by a two-stage amplification circuit (the first and second amplifiers

80, 81 power) with the adjustment of the output power level in the block 79 of the power adjustment (BRM).

Power amplifiers 80 81 are made on traveling-wave lamps controlled by pulse modulators 82, 83. In this case, the operation of the first pulse modulator 83 is synchronized by SI9 pulses from the output of the synchronizer 69, and the operation of the second pulse modulator 83 is synchronized by the pulses of the first modulator 82, which are generated by the signal Launch On Maud. 2 "from the output of the switching unit 84, which is formed when the command" On UM2 "is received from device 6. At the second output of the switch 84, a “Ex.” Signal is generated that controls the switching of the BRM 79 waveguide channels.

The BRM 79 contains three waveguide switches, an attenuator, an attenuation unit (directional coupler with a load), two directional couplers with detector sections, two circulators that match the wave impedances of the amplifiers 80, 81 with inputs of the BRM 79, a relay control unit for the drives of the waveguide switches and the attenuator, and Microwave load (antenna equivalent).

In the absence of the command “On UM2 "block 63 operates in the" UM1 "mode. The output signal of the amplifier 80 is fed to the first input of the BRM 79, in the presence of the command "Weak. 1 ”(coming from device 6) is attenuated by the BRM attenuator by 10 dB and then, if the“ Ant. ”Command from device 6 is present, it goes to the first output of the BRM 79, which is the output of the power amplifier unit 63. In the presence of the command "Equ." The output signal of the amplifier 80 is fed to the equivalent of the antenna in the BRM 79.

If there is a command “On UM2 "block 63 operates in the operating mode" UM2 ". The output signal of the first amplifier 80 is supplied to the first input of the BRM 79, in the presence of the command "Weak. 1 ”is attenuated by 10 dB and through the second output of the BRM 79 is fed to the input of the second amplifier 81, and from its output to the second input of the BRM 79. Further, if the command“ Weak. 2 "the signal is attenuated by 40 dB and in the presence of the command" Ant. "Is fed to the first output of block 79 BRM.

The control device 78 contains two FM linearity control units 85 connected to the control outputs of the LFM generators 64, 65, a power control unit 86, the inputs of which are connected to the outputs of the detection sections of the directional couplers BRM 79, which separate part of the power of the amplifiers 80, 81, unit 87 for monitoring control parameters of synchronization pulses connected to the SI output

control. ”synchronizer 69, and the unit 88 combining health signals, the inputs of which are connected to the outputs of blocks 85, 86 and 87, and the output forms the output of the health signal of the transmitting device 3. Combining the health signals in the unit is made by the matching circuit. In addition, the unit 88 includes a measuring device (IP) connected to a switch, by means of which the controlled currents of the frequency shift device 68, the intermediate frequency generator 75, the multi-frequency generator 70, and the DC voltage of the controlled devices are manually switched to the IP input.

The principle of operation of the FM linearity control unit 85 is based on detecting the transitions of the error signal of the AFC generator block 64 (65) from channel “A” of increasing the frequency of the generator to channel “B” of decreasing its frequency and then calculating the number of these transitions. The transitions of the error signal are detected using comparators, which select the front and slice of pulses “KOA” (error channel A), “BER” (error channel B). The outputs of the comparators are combined according to the AND-OR scheme, which generates pulses with the simultaneous presence of a pulse front "KOA" and a pulse cut "BER" and vice versa, i.e. when an error signal is transferred from channel to channel. These transition pulses at the intervals of the packages are recorded in the counter, the contents of which are written in the register, after which the counter is reset. The data recorded in the register enters a logical device that generates a health signal if the number of transitions is within the specified limits established for each control mode.

The power control unit 86 is based on gated peak drives, which convert the amplitude of the envelope pulses of the signals of amplifiers 80, 81 into a constant voltage. The formation of gating pulses is performed by logical elements according to the OR circuit from pulses "SI8-1", ..., "SI8-9", the presence of which is a sign of radiation at the corresponding operating frequency.

In block 87 control pulses of synchronization is monitored by the presence of all output pulses of the synchronizer 69, as well as the frequency of the pulses "SI counter" the last stage of the chain of frequency dividers of the synchronizer. The presence of pulses is controlled using a register having a separate recording input for each bit. The register is reset by the “Reset” signals, every four periods of “SI counter.” Pulses, after which information about the presence of each monitored pulse is recorded in the register bits during the time from the removal of the “Reset” signal until

signal "Record", equal to two pulse periods "SI counter.". The frequency of impulses "SI counter." Is controlled by a comparator, which receives pulses of a triangular shape with an amplitude proportional to two pulse repetition periods of "SI counter."

In figure 4 of the structural-functional diagram of the receiving device 4 of the chirped signals the following notation:

89 - shaper blanking pulses,

90 - directional coupler (BUT),

91 - high frequency amplifier (UHF),

92 - transponder

93 - the first intermediate frequency amplifier (IFA),

94 - filter

95 - block attenuator key,

96 - radar noise generator (GS),

97 - filter

98, 99 - the first and second mixers,

100 - adjustable variable frequency drive unit with a video detector,

101 - block limiter-converter

102 - block amplifier low frequency (VLF) with frequency gain control (HR),

103 ₁ , ..., 103 ₁₆ - blocks of amplifiers-converters,

104 - frequency analyzer,

BF ₁ , ..., BF ₁₆ - blocks (combs) of analysis filters, each of which contains 32 parallel analysis channels, including a serially connected narrow-band filter, a detector and a key, the control input of which is connected to a decoder;

105 - control unit for interrogation of the analyzer channels (hereinafter referred to as the interrogation control unit),

106 - block combining video signals,

107 - block switching and measurement,

108 - analyzer control unit,

109 - tunable frequency generator (GPC),

110 - meter integrated transmission coefficient (ICP),

111 - control unit.

The receiving device 4 is intended for receiving, converting and analyzing the reflected signals generated by the transmitting device 3.

In the pulse mode of operation of the transmitting device 3, the receiving device 4 operates in the "Imp." In the main operating mode of the transmitting device 3, the receiving device 4 operates in one of the following modes:

"NSO" - continuous with restriction of the level of received signals;

"NSL" - continuous without limiting the level of received signals (linear).

The signal input of the receiving device 4 is the first input of a directional coupler 90 connected to the isolation device 23. The second input of the directional coupler 90, forming the control input of the device 4, is connected to a noise generator 96, which is turned on by the signal “On. GSh ”from the radar display and control device 6. The output of the directional coupler 90 is connected to the input of the UHF 91, which for the duration of the operation of the transmitting device 3 is blocked by blanking pulses “UHF Blank” from the output of the shaper 89 (attenuation 60 dB).

The output of the UHF 91 is connected to the first input of the transponder 92, in which the received signal is converted to the first intermediate frequency (IF-I) through the first heterodyne signal "Geter. one". In this case, depending on the operating mode of the transmitting device 3, the frequency of the converted IF-I signals is: 2350 MHz — the “Imp.” Mode or 2350 MHz + Fd — the NSO and NSL modes, where Fd is the range of range frequencies ( up to 51.2 kHz).

The output of the transponder 92 through a series-connected UHF 93 and a filter 94 is connected to the input of the block 95 of the attenuator key, which provides adjustment of the gain of the receiving device using an adjustable attenuator, introducing attenuation of 5 or 10 dB. The key circuit of block 95, controlled by the “Blank Cl.” Pulses from the output of the shaper 89, provides signal attenuation of 50 dB.

Blanking pulses “UHF Blank and“ Cl. Blank. ”Are formed by block 89 from synchronizer pulses“ SI10 ”of synchronizer 69.

The output of the block 95 of the attenuator-key is connected to the first inputs of the mixers 98, 99, in which the second frequency conversion is performed by means of the second heterodyne signal “Heter. 2 ", which is fed through the filter 97 to the second input of the mixer

98 in the “Imp.” And “NSO” modes, or by means of the third heterodyne signal “Heter. 3 ", which is fed to the second input of the mixer 99 in the" NSL "mode.

As a result of the second frequency conversion, the output of the mixer 98 in the pulsed mode of the receiving device generates signals with a frequency of 45 MHz, and in the "NSO" mode with a frequency of 45 MHz - Fd. At the output of the mixer 99, operating in the "NSL" mode, signals are formed with a frequency of Fd.

The output signals of the mixer 98 are received in the block 100 of the adjustable IF with a video detector.

When the receiving device 4 in the "Imp." Signals "IF-II" (45 MHz) in block 100 are amplified and detected. The gain is regulated by manual (RRU) and temporary automatic gain control (VARU) circuits. The start of the VARU is performed by “SIV” pulses from the synchronizer 69, and the gain control voltages “RRU” and “VARU” are formed in the radar indication and control device 6. The output pulse video signals "Video And" generated by the video detector of the block 100 in a pulsed mode of operation, is transmitted to the input of the same device 6.

When the receiving device 4 in the "NSO" mode, the signals "FC-11" (45 MHz-Fd) are amplified in the block 100 with adjustable gain voltage "RRU-NSO", and then fed to the block 101 of the limiter Converter.

In block 101, the received signal bursts are limited in amplitude, the envelope of the bursts is formed, and the spectrum of the signals is converted to the low-frequency region (range frequencies).

For partial suppression of the side lobes (PBL) of the spectrum, temporary weight processing is used (bell-shaped envelope formation), which is performed by the amplifier-limiter of block 101 when the “Exercise” control voltage is applied. The voltage "Exercise." Is generated in the driver 89 by the command "PBL" coming from the device 6, using the clock pulses "IF-1", "IF-2", coming from the synchronizer 69.

Then, after limiting and generating the envelope of the signal bursts, in the mixer of block 101, the frequency is converted using the fourth heterodyne signal “Heter. 4 ”(with a frequency of 45 MHz), as a result of which the spectrum of signals is transferred to the range of range frequencies Fд.

The output signals of block 101 with a frequency of Fd are transmitted to the second input of block 102 of the VLF with the CRO, the first input of which is connected to the output of the mixer 99, which generates signals with a frequency of Fd when the receiver is in the “NSL” mode.

Further signal processing in the "NSO" and "NSL" modes is the same.

In block 102 of the ULF with a frequency response, amplification of signals at a low frequency is performed. When a command “CHRU1”, “CHRU2” is fed into the block, the characteristic of the dependence of the transmission coefficient of the block on the range frequencies is changed.

The output signal of block 102 branches out to the inputs of the mixers (Cm) of parallel-working blocks 103 ₁ , ..., 103 of ₁₆ amplifier-converters in which the signal spectrum is transferred to the third intermediate frequency (into the operating frequency band of the analyzer, consistent with the duration of the chirp send) . This is achieved by applying to the second inputs of the mixers the blocks of local oscillator voltages (G ₁ , ..., G ₁₆ ), the working frequencies of which are offset from each other (by 3.2 kHz in the range of 159.9-207.9 kHz) and are chosen as follows: so that the signals converted by the mixers fall into the frequency band 156.7-159.9 kHz. The output signals of the mixers are amplified in a frequency converter with remote gain control using the voltage “RRU-NSL” generated in the device 6 and fed to the inputs of the filter units (combs) of the BF ₁ , ..., BF _{16 of the} frequency analyzer 104.

In each of the combs of the BF ₁ , ..., BF _{16, the} input signals branch out to the inputs of 32 parallel channels, the filters of which have tuning frequencies that are 100 Hz apart. The output signals of the filters are amplified and detected.

Then the channels of each filter bank are sequentially interrogated by the polling control unit 105 and combined by the combining unit 106 to the common output “Video N”, from which they are transmitted to the first information input of the radar signal processing and information conversion device 7.

The interrogation control unit 105 is built on the basis of a pulse distributor consisting of a 9-bit pulse counter with decoders connected to its output. In each of the 512 states of the pulse counter, the decoder generates a polling pulse of one of the channels BF ₁ , ..., BF ₁₆ . The decoders of the pulse distributor, which directly generate the polling pulses, are installed at the outputs of the channels of the filter bank, and the rest of the pulse distributor is installed in block 105. To control the decoders in BF ₁ , ..., BF ₁₆ , each of them from the block

105, five-digit code signals “1р СЧ” - “5р Сч” and one of the 16 signals “Imp. 1 ", ...," Imp. permission 16". The start of the channel polling is set by the “NOsFt” pulse, and the polling time of one channel is determined by the period of “TI” pulses that come from the device 7.

In block 106, the Association of the signals "Video 1", ..., "Video 16" are combined into a positive pulse "Video N", which is periodically the following bursts of 512 pulses, the amplitude of each of which is determined by the signal level in the corresponding filter comb BF ₁ , ..., BF ₁₆ .

The operability of the receiving device 4 is monitored by a switching and measuring unit 107 and an analyzer control unit 108, which comprises a tunable frequency generator 109, an integrated transmission coefficient meter 110, and a control unit 111.

The switching and measuring unit 107 comprises a measuring device (microammeter) connected to the output of the “Parameter” multi-input switch, the input signals of which are the currents of the transponder 92, noise generator 96, GPC 109, and also the GP video voltage from the output of the ICP meter 110 and voltage "Counter. IF _III "," Counter. And ”,“ Video Ш ”from the corresponding outputs of the measured voltage generator of the block 107.

Test voltage IF _III "are removed from the outputs of the inverter blocks 103 ₁ , ..., 103 ₁₆ and fed to the shaper through the switch" Comb number "of block 107, and the control voltage" Control. And ", taken from the output of the adjustable variable frequency converter unit 100 with a video detector, and the control signal" Video Ш ", taken from the output of the integrated transfer coefficient meter 110, are fed directly to the inputs of the measured voltage generator of block 107.

Using the comb number switch of block 107, a four-digit comb number code (BF block number) code “Row code 1p-4p” is generated, which is transmitted to the control unit 111 and to the polling control unit 105.

In addition, the switching and measuring unit 107 includes a switch “Filter number”, by means of which a five-digit code number of the filter number “Code FT.1r-5r” is formed, and a switch “Control mode” generating signals “0” KF, “0” dir. 1 "," 0 "dir. 2 "," 0 "dir. 3 ", specifying the control modes of the analyzer control unit 108.

The tunable frequency generator 109, used to measure the integral transmission coefficient of the filters of the analyzer 104, contains a triangular voltage generator (with a frequency of 6.3 - 9.5 kHz), the frequency of which is tuned by means of a sawtooth pulse generator. The output signal of the triangular voltage generator after amplification in the limiting amplifier is mixed in the mixer with a sinusoidal voltage generated from GCD pulses (a local oscillator signal with a frequency of 150.4 kHz) coming from the synchronizer 69 of the transmitting device 3. At the output of the bandpass filter of the mixer, the signals “GP ₁ ”, ...,“ GP ₁₆ ”with a frequency of 156.7-159.9 kHz, corresponding to the filter bank of the filters, which are amplified, normalized by amplitude and fed to the output of the GPC 109 through a switch providing alternate connection GPC 109 to the control inputs BF ₁ , ..., BF ₁₆ .

Block 110 measuring the integral transmission coefficient is based on an amplitude comparator, the input of which is connected to the output "Video N" of the receiving device 4.

The control unit 111, made on the basis of the decoder and the comb counter, generates the “Control” control signal by the GPC switch 109. In order for the GPC to be connected to the filter blocks in the forward direction of the generator, the decoder of the 111 block is gated by the GPC reverse pulse pulses.

The control unit 111 also contains a circuit for comparing the filter codes “Code FT 1p-5p” coming from block 107 with the filter codes “1p Sch. - 5r Sch. ”, Formed by the block 105 of the survey control. At the output of the code comparison circuit, a gating pulse of the amplitude comparator of the ICP meter 110 is generated.

For the coordinated operation of blocks 111 and 105, block 111 is synchronized by the pulses "NOsFt" and "TI".

In Fig.5 structural and functional diagram of the device 6 display and control of the radar, the following notation:

112 - video control device,

113 - remote control modes

114 - handle control the sight,

115 - a board of signals of serviceability,

116 - block potentiometers,

Km - voltage switch

117 - device synchronization and switching,

118 - sign board (ST),

119 - control unit display information on the ST,

120 - block switching video signals,

121 - a block for generating clock pulses, signals and control commands,

122 - block of zero sensors,

123 - block amplification and conversion

124 - coordination unit,

125 - block digital conversion of angles,

126 - control unit of the rotation drive,

127-unit communication

128 - block switching modes of the drive.

The video monitoring device 112 is intended for television display of the radar situation using the circular viewing indicator (IKO) and the indicator of exact coordinates (ITC). The inputs of the video monitoring device 112, which receives the television video signal "Video TV" and the trigger signals of horizontal and vertical scanning ("IRS", "IRMS"), are connected to the corresponding outputs of the device 7 for signal processing and radar information conversion.

The mode control panel 113 contains display elements as a part of a health signal panel 115, on which the health signals of devices 2, 3, 4, and 7 are displayed and a symbol board 118, which displays target designation data generated in the PRLS analysis and data output device 14 and transmitted on the serial line interface highway (IMPK 1) through the information display control unit 119. The working parts of the remote control 113 include the handle 114 of the control of the sighting device, which generates control signals transmitted to the device 7, unit 116 of the potentiometers of the switchgear and the auxiliary control unit, the output signals of which are output to the console via the voltage switch (Km), controlled by the mode switch ("Imp." / "NSO" / "NSL") of the receiving device (not shown).

In addition, through the switches and control buttons (not shown for simplicity), the control panel outputs the channel switching signals of the 5 RF radar switching device (“Ex. VP”), the control signals of the modes of the transceiver 2 (“Channel I, II”, “ On HV I, II ”,“ Radiation 2 Ant / Equ ”), control signals for the modes of the transmitting device 3 (“ Radiation 3 Ant / Equ ”,“ On

UM2 "," Weak. 1, 2 "," Mod. 1-5 "," Off Mod. ”), Control signals for the modes of the receiving device 4 (“ Imp. / NSO / NSL ”,“ On GSh ”,“ PBL ”,“ CRU ”), control signals for the modes of the device 7 (“ Scale ”,“ Mark number ” , “Evaluation” “Target symptom - MC, BC, NE”, “Accompanying Pl. Avt / Avt.”, “Reset / Capture”, “Maneuver”, etc.), as well as activation signals of the functional control modes “FC1” - “FC4”.

The outputs of the remote control 113 according to the signals "Radiation 2, 3", and "Channel 1, 2", indicating which of the transmitting devices (2 or 3) works and in what mode (Imp. Or LFM) device 3 is connected to the control inputs block 121 of the formation of signals and control commands in the device 117 synchronization and switching, which also includes the block 120 switching video signals.

The inputs of block 121, to which the synchronization signals TI8, NOD, UIZP are applied, are connected to the outputs of the synchronizer 69 of the transmitting device 3. The first output of block 121 is connected to the control input of the video switching block 120, the second output on which the command is generated “Imp. ex. PRD ”is connected to the control inputs of the synchronizer 69 and the driver 76 of heterodyne signals of the transmitting device 3, the third, fourth and fifth outputs, on which the signals“ Start P ”,“ Sector ”and“ Zp. VARU ”, connected to the inputs of the mode switching unit 29 and the control input of the UCH 58 of the transceiver 2, and the sixth and seventh outputs (indicated by one communication line), on which the synchronization signals“ NOD-6 ”and“ TI8-6 ”are formed, are connected to the synchronization inputs of the device 7 signal processing and information conversion radar.

The information inputs of the video switching unit 120 are connected to the Video 2 output of the transceiver 2 and the Video I output of the receiving device 4, and the Video b output of block 120, to which either the Video 2 signal or the Video I signal is transmitted connected to the second information input of the device 7 signal processing and information conversion radar.

The outputs of the console 113, on which the signals for setting the stabilization drive modes of the combined antenna device (Stab / Str) are generated, are connected to the control input of the zero-sensor block 122.

Block 122 of zero sensors provides communication according to a transformer circuit between the ship gyro-pointer, from which the signals of the angles of pitching and pitching (θ, ψ), and the driving rotary transformers (VT) of stabilization drives of block 16 are received into the complex. Outputs of the error signals (Δθ, Δψ) between

the driving and driving VT (information outputs) of the stabilization drive unit 16 are connected to the first and second inputs of the amplification and conversion unit 123, the third input of which is connected to the output of the rotation drive control unit 126 by the antenna angle mismatch signal (Δq _A ). The outputs of block 123, on which the control voltages Уп θ θ »,« ψ ψ ψ »форми,»,,, 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 123 на 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 Output outputs of block 123, on which control voltage Уп θ, Уп ψ ψ с с с 16 16 16 16 16 16,, 16 q _A ", connected to the input of the hydraulic booster of the drive 17 of rotation of the combined antenna device 1.

The signal of the current angle of rotation of the antenna q _A from the rotation sensor of the rotation drive 17, as well as the course angle signal “K” from the ship gyro-pointer and the speed signal of its ship “V” from the ship's lag are the input signals of the digital angle conversion unit 124, which is via an information exchange line connected to the rotation drive control unit 126 and the communication unit 127.

The control input of the drive control unit 126 is connected to the output of the drive mode switching unit 128, the input signals of which are the “Rotation”, “Str”, “PRLS”, “4 rpm” signals generated by the governing bodies of the console 113 in the active operating modes of the complex, or signals “Stop.”, “Scan. Fast / Slow”, “Str”, “1 rpm”, generated, as will be shown below, in the device 13 conversion, indication and control of the radar when using the antenna of the third range of the block 15 MB antennas for the detection of radio sources.

The drive control unit 126 comprises a driver that generates in real time a binary code of a given angular position of the antenna, a calculator defining a code for the difference between the given and current positions of the antenna, and a code-to-analog converter that converts the digital error signal into an analog signal, which is transmitted to block 123 amplification and conversion. In the scanning modes, the required antenna position is determined depending on the position of the sight, the antenna rotation speed and the heading angle in the image stabilization mode on the PPI screen relative to the north. The gating signal “Strobe q _A ” generated by the drive control unit 126 in the sector scanning mode is transmitted to the input of the block 121 to generate the “Sector” command.

The calculator also determines the current value of the difference between the set and the true position of the antenna, which is converted into pulse signals of the increment of the angle of rotation of the antenna "+ q, -q, q ₀ ", which are transmitted through the communication unit 127 and the block 124 matching in the device 7 signal processing and conversion radar information.

The code "φ _AMV " of the current angular position (bearing) of the antenna is transmitted through the communication unit 127 to the PRLS conversion, display and control device 13, and the code "NK Code" of the navigation data (heading, speed, ground angle) of its ship, formed at another output unit 127 communication is transmitted to the device 7 and to the device 13, 14

In Fig.6 structural and functional diagram of the device 7 signal processing and information conversion radar adopted the following notation:

129 - primary information processing device (UPRI),

130 is a computing device containing an arithmetic logic device and a firmware control device,

131 - external communication device,

132 - television digital conversion scan (TCR),

133 - remote maintenance,

134 - binary quantizer,

135 drive

136 - automatic threshold regulator,

137 - coordinate meter,

138 - coordinate converter,

139 - shaper information for the indicator of the exact coordinates (ITC),

140 - shaper information for the indicator of the circular review (PPI),

141 - shaper of secondary information,

142 - shaper sight,

143 - shaper output video signal,

144 - output register

145 - synchronizer,

146 input devices

147 - communication adapter,

148 - highway address, data and control (ADU).

According to FIG. 6, the computing device 130 is connected via the ADU line 148 to a coordinate meter 137 included in the primary processing device 129, as well as to an input device 146 and a communication adapter 147 included in the external communication device 131. In addition, the computing device 130 and the input device 146 are connected to the maintenance console 133, which serves to indicate the status of the units, devices, and highway 148 on the status display, as well as to control the device in the “Work”, “Debug”, “Control” modes .

UPRI 129 is intended for primary processing of packages of the reflected signals "Video N" generated at the output of the receiving device 4 in the radiation mode of the chirp of the probe signal, or video pulses "Video 6" coming from the device 6 in pulsed radar modes.

The “Video N” package of the amplitude-modulated pulses after digitization in the analog-to-digital converter of the drive 135 is recorded in the drive package RAM at a pace determined by the “НО СФт”, “ТИ” pulses, which are generated by the 137 coordinate meter to control the polling of the analyzer 104 channels.

The pulse video signal “Video 6” enters the binary quantizer 134 synchronized by the “NOD-6” and “TI8-6” pulses, in which it is quantized by exceeding the threshold regulated by the ATM unit 136 to maintain a fixed value of noise false alarms, and then it is recorded in the RAM of the packages drive 135.

The readings of packages and their accumulation in the RAM of the packs of the drive are carried out at a pace determined by the sync pulses of the timer of the computing device 130. The RAM of the packs of signals has a capacity of 256 elements of range for 64 pulses per burst in pulse modes and 512 elements of range for four pulse parcels in LFM mode . Then, in the drive 135, the signal packets are integrated and the coordinate 137 meter is written into the buffer RAM, from the output of which the intensity code signals, range gates and the start and end polls of the drive are transmitted through the galvanic isolation circuit of the shaper 141 of secondary information to the signal and range registers of the shaper 139 ITK .

Coordinate meter 137 is a microprogram controlled automaton that iterates through all range codes alternately using a counter, reads the intensity signal corresponding to the range code from the output buffer RAM, and compares the intensity signal with a predetermined threshold level. For signals exceeding the threshold level, start codes are fixed in the measurement unit

and the end of the target, which are transmitted via the ADU line 148 to a computing device 130 that performs secondary processing of information (determining the true coordinates of targets and their motion parameters, generating target tracking signals).

From the computing device 130, a 16-bit code is issued to the input of the coordinate converter 138, which determines the code and type of incoming information (data for displaying target forms, coordinates of the sighting device, coordinates of your ship, current bearing of the antenna, etc.)

ТЦПР 132 provides reception of target information generated in polar coordinates from UPRI 129 and computing device 130, converts it into standard television video signals displayed in rectangular coordinates on the all-round viewing indicator or displayed in distance-azimuth coordinates on the exact coordinates indicator, and also forms images a visor and images of secondary information represented by alphanumeric information, markers and vectors.

The coordinate converter 138 is used to convert the polar coordinate system to rectangular, which is provided by two microprocessor sets. In addition, the Converter 138 generates the RAM address IKO when writing information to it and generates images of the forms of goals. The array of information displayed on the scoreboard of the form comes from the computing device in the form of numbers of symbolic places and sign codes and is stored in the RAM of the form using the Sign and Familiar counters, and then it is converted by means of the character generator into the positional code of video signals and output through the output register in the driver 143 output video signal. In addition, the Converter 138 generates the coordinates of the marker of the sight, which are displayed in the imaging unit 142 of the sight.

The ITC shaper 139 contains the ITC RAM, the RAM control device (UC), the logic circuits, and the input buffer memory (IU) of the ICE, in which the maximum values of the signals arriving for recording in the ITC RAM are recorded. The coordinate of each RAM point is determined using the address codes and the rows of the RAM matrix, which are formed from the codes of the initial coordinate value of the bearing and the current value of the bearing coming from the secondary information generator 141. Simultaneously with the addresses in the RAM cells is recorded information about the intensity of the signals coming from the shaper 141.

The IKO shaper 140 is the main node of the TSPR 132 and contains the IKO RAM, into which information from the IKO buffer memory of the IKO shaper 139 ITK is written to the addresses from the coordinate converter 138. In addition, the structure of the PPI shaper 140 includes a RAM RAM and a switch through which the output signals from the ITC RAM or the PPI RAM are switched to the inputs of the OR circuit connected to the output register 144.

Shaper 141 secondary information contains the formers of the sign and vector, providing point-by-point generation of the address code and sign of the image element, and RAM, from which information is issued in the output register 144.

The output of the output register 144 is connected to a video output driver 143, in which digital-to-analog conversion of the signals into a Video TV signal is performed, which is displayed on the screen of the video monitoring device 112.

The synchronizer 145 generates the synchronization signals of the shapers 141, 139, 140, as well as the start pulses of the scan lines and frames (IRRS, FIR), which synchronize the image on the VKU 112.

The input device 146 is intended for input and conversion of control signals from the handle 114 of the visor, input and generation of control signals from the control panel 113 of the device 6, as well as for issuing control signals generated by the control panel 133 maintenance, input, recording and amplification of health signals , storing and reading command codes from the microprogram control device of the computing device 130. The device 146 is made on the basis of an analog-to-digital converter, a decoder, a switch, signal finder and state register. The health monitoring of the device 7 is implemented by software.

The communication adapter 147 provides reception, storage in the buffer RAM and transmission to the computing device 130 of the current values of the navigation code "NK code" received from the communication unit 127 of the device 6, the issuance (on the TIPKO line to the device 14 of an array of information about the goals (goal forms) that form computing device 130, and provides a reception node through a galvanic separation, formation and transfer of a computing device pulse signal «+ q, -q, q _0" increment angle of rotation of the antenna coming from O and matching device 124 device 6.

The receiving devices 10, 11, 12 are made on the basis of the same functional units and differ in the number of frequency detection channels in the range and their parameters.

In FIG. 7 shows the structural and functional diagram of the receiving device 12, in which the signals of the VI and IV frequency ranges of the PRLS are simultaneously processed.

In FIG. 7 the following notation is accepted:

149 - block high frequency amplifiers (UHF) VI range,

150 - block UHF IV range,

151 ₂ , 151 ₃ - blocks of video amplifiers (VU) of the second and third tones of the VI range,

152 - WU of the first tone of the VI range,

153 ₂ , 153 ₃ - blocks WU second and third tones of the IV range,

154 ₁ , 154 ₂ , 154 ₃ - VU of the first, second, third channels of the signal of the first tone,

155 - linear switch (LC) of the first stage,

156 - block video amplifier analysis (ASA) and the amplifier low frequency analysis (ULFA),

157 ₁ , 157 ₂ , 157 ₃ - low frequency amplifiers (ULF) of the first, second, third channels of the signal of the first tone,

158 - shaper compensation signal,

159 - primary processing device of the VI range,

160 - primary processing device of the IV range,

161 - linear switch of the second stage,

162 - communication unit,

163 - control unit linear switch of the first stage,

164 - control device,

165 - unit for measuring currents and voltages,

166 - shaper generalized signal health,

167 - block noise amplifiers and threshold devices,

168 - decoder control codes,

169 - generator control video pulses (KB).

According to FIG. 7, the inputs of the UHF units 149, 150 form the inputs of the HF signals of the VI and IV ranges arriving at the receiving device 12 from the amplification and RF switching device 9 of the PRLS and from the bandpass filtering and amplification unit 19, respectively.

UHF block 149 is made in a three-stage scheme with separating part of the input signal power to the first video detector, generating a “3C” video signal of the third tone, amplifying the signal power in the main line by means of the first UHF controlled by an attenuator, separating after amplifying part of the power to the input of the second video detector generating the video signal “2C” of the second tone, and amplification of the signal power in the main line by means of a second UHF controlled by an attenuator. Next, the signal from the output of the second UHF is filtered by a broadband filter and detected by a third video detector, which generates a “1C” video signal of the first tone.

The output signals "3C", "2C" of block 149 are fed to the inputs of blocks 151 ₃ , 151 _{2 of} video amplifiers made in the same way. Block 151 ₃ , (151 ₂ ) contains a preamplifier covered by feedback through the BAR (noise automatic gain control) circuit, a three-stage logarithmic amplifier that generates a 3VA (2VA) analysis video signal, and a terminal block of a linear short-pulse video amplifier (VUKI) ) and a linear video amplifier of long pulses (VUDI), forming the video signals "3KI", "3DI"("2KI","2DI") of the detection channels of signals of the third and second tones.

The video amplifier 152 of the first tone, to which the “1C” signal is supplied from block 149, contains a preamplifier with a BALL, from the output of which a 1CAA signal is taken, and linear VUKI, WOODI generating signals “1KI”, “1DI”.

The signals "3KI", "3DI" from the outputs of the block 151 ₃ , signals "2KI", "2DI" from the outputs of the block 151 ₂ g and signals "1KI", "1DI" from the outputs of the video amplifier 152 are fed to the inputs of the UPOI 159, and the signal " 1ВСА ”is fed to the input of the linear switch 155 of the first stage.

Block 150 UHF of the IV range differs from block 149 of UHF of the VI range in that after amplification of the signal in the second UHF, it is fed to the block of narrow-band filters forming three adjacent frequency channels. Next, the output signals of narrow-band filters are detected in the detector section, the outputs of which are formed signals 1C ₁ , 1C ₂ , 1C _{3 of the} corresponding channels of the first tone.

Blocks 153 ₃ , 153 ₂ VU of the third and second tone of signals of the IV range are made similarly to blocks 151 ₃ and 151 _{2 of the} VI range, and video amplifiers 154 ₁ , 154 ₂ , 154 ₃ differ from the video amplifier 152 by the presence of an additional amplifier of pulse and continuous signals (ANN), the first input of which is connected to the output of the pre-amplifier, and the second to the corresponding output of the compensation shaper 158

a signal by which spurious amplitude modulation of noise arising from the operation of the modulator 25 is compensated.

Shaper 158 generates a compensation voltage that is out of phase with the modulation voltage. At the input of the shaper from the device 13, a “Mod” signal is applied, which is a meander voltage, which is converted by three adjustable differential current amplifiers (for each of the video amplifiers 154 ₁ , 154 ₂ , 154 ₃ ) into a signal whose shape matches in the best way with the shape of the spurious noise signal of this channel.

Video signals "3KI", "3DI", "2KI", "2DI" of short and long pulses of the third and second tones from the outputs of blocks 153 ₁ and 153 ₂ and video signals "1KI ₁ ", "1DI ₁ ", "1KI ₂ ", "1DI ₂ »“ 1KI ₃ ”,“ 1DI ₃ ”of short and long pulses from the outputs of the video amplifiers 154 ₁ , 154 ₂ , 154 _{3 of the} corresponding channels of the first tone are fed to the inputs of the block 160 UPRI, and continuous signals from the outputs of the video amplifiers 154 ₁ , 154 ₂ , 154 ₃ served on the inputs of block 160 after amplification in the ULF 157 ₁ , 157 ₂ , 157 ₃ .

The video signals lBCA ₁ , 1BCA ₂ , 1 BCA ₃ , NSA, taken from the output of the emitter follower of the ANN amplifier of video amplifiers 154 ₁ , 154 ₂ , 154 ₃ , through the linear switch 155 of the first stage, controlled by the signals from the output of the control unit 163 LC, are sequentially fed to the input of the block 156 VUA and ULFA.

Block 156 contains separate amplification channels for pulsed and continuous signals, combined by a common input. The channel of pulse signals is based on a three-stage logarithmic amplifier. The continuous signal channel contains a preamplifier, a low-frequency logarithmic amplifier, a continuous signal detector, and a converter in which the detected voltage is converted into a sequence of pulses, the envelope of which repeats the envelope of continuous signals at the detector input, and the duration and repetition period are determined by the pulse parameters "Coming from the communication unit 162.

LC control unit 163, based on an amplifier, OR circuit, ROM, code decoders, combinational circuit, and level shaper, provides signal generation “Exerc. 1 "-" Ex. 14 ”, controlling the linear switch 155. The formation of the corresponding control signals is performed according to the polling signals received from the device 13 conversion, display and control of the radar control device (filter (channel) code number is“ Code Nf ”and“ Form LC ”).

Analysis video signal “1VA” of the first tone of the VI range, video analysis signals lBA ₁ ”,“ 1BA ₂ ”,“ 1BA3 ”of the first, second, third channels of the first tone of the IV range (designated 1VA) and the video signal“ NSA ”from the output of the 156 VUA and ULF unit as well as video signals of the analysis “2BA”, “3VA” of the second and third tones from the outputs of blocks 151 and 153 are output to the output of the receiving device 12 through the linear switch 161 of the second stage, to which the polling signals “Code Nд” (number code range) and "D" (range). Through the same switch, common to all receiving devices, video signals of analysis “1BA”, “2VA”, “3VA” of the III and V ranges are generated, which are generated in the receiving devices 10, 11 of the radar control system.

The primary processing devices 159, 160 are designed to detect and temporarily select signals and differ from each other in that the first tone signals are processed in the device 160 by three parallel working detection devices, and not one, as in the device 159.

Each of the first tone signal detection devices consists of a detector, a time selector, a memory register, and an electronic switch. Each detector receives video signals “1KI ₁ ”, “1DI ₁ ”, “1HC ₁ ” (“1KI ₂ ”, “1DI ₂ ”, “1HC ₂ ”; “1KI ₃ ”, “1DI ₃ ”, “1NS ₃ ” ) the first tone of the corresponding frequency channel. Exceeding any of these signals by the detection threshold triggers the first tone triggers in the memory register.

The signals of the second tone “2KI”, “2DI” and the signals of the third tone “3KI”, “3DI” are respectively transmitted to the signal detectors of the second and third tone and, if the detection threshold is exceeded, are transmitted to the temporary selectors of the first tone detection devices, as well as to strobe extender and pilot signal driver. In the temporary selector, the detected signals of the second and third tone are gated by the signals from the output of the first tone detector. Signals of the second and third tone that fall into the strobe of the signals of the first tone are recorded in the memory register. The expander provides improved detection reliability by increasing the duration of the strobe. The signal “Form K” prohibits the operation of the detector of signals of the third tone, and the signal “0” Form 2T, 3T "prohibits the operation of detectors of the second and third tones in one channel of the block.

The detection of information from the memory registers is performed through the electronic switch during the simultaneous receipt of the signals “Poll n”, “Poll m”, “Poll n + 1”, “Poll m + 1” from the communication unit 162.

The communication unit 162 is designed to generate synchronization signals and control the operation of the UPOI 159, 160 and broadcast the detected signals “1t” (each detection channel), “2t”, “3t”, “NSO” to the PRLS conversion, display and control device 13.

The communication unit 162 contains a signal translator, control register and a control unit including an input register, two decoders, a linear switch register, a matching circuit, and a shaper.

The 6-bit Code Nf coming from the device 13 (filter numbers, that is, the frequency channel numbers) is written into the input register by cutting the "IOF" pulse coming from device 13. Depending on the values of this code, the decoders generate polling signals, entering UPRI 159 or 160.

Impulses LC ”cause overwriting in the register of the linear switch and transmitting to the output of the“ Blank LC ”block the value of the code recorded in the input register at the time of the presence of the signal“ Stop. LK ". The “IOF” pulses are used to generate “ISK” pulses (control synchronization), which are transmitted in the corresponding control mode to the control input of the generator 169 control pulses, as well as “Reset” pulses and “Strobe NS” pulses for the 156 VUA and ULF unit.

The signal converter on the pulse front "IOF" records the signals "1t", "2t", "3t", "NSO" in the register UPRI, from the output of which these signals are transmitted to the output of block 162.

The control register block 162 generates the output signals "Counter. 1I-1 ”, upon receipt of the signals“ Counter. 1I "," Counter. 2I "," Counter. 3I ”from the control signal conditioners UPOI 159, 160, which are formed upon detection of signals of the first, second and third tone. The control register is reset to zero by “Reset” pulses.

The linear switch control unit 163 provides signal generation “Signal. control 1 "-" Sign. control 14 ", by which the corresponding input signal of the switch 155 is switched to the input of the unit 156 VUA and VLFA.

The built-in control device 164 comprises a current and voltage measuring unit 165, a general health signal generator 166, a noise amplifier and threshold device block 167, a control code decoder 168, and control video pulses generator 169.

Block 165 is built on the basis of a measuring device (IP) and a wrench switch, by means of which currents of monitored units and noise voltages from control outputs KS of blocks 151-154 and 157 are switched to the IP input.

Unit 166 combining health signals contains inverters, logic elements, a drive and a key stage and generates a health signal of device 12 if there are control signals at the inputs of “Control. I-1 ”and signals from block 167 amplifiers and threshold devices.

Block 167 is a three-channel noise amplifier. One channel is used to amplify the "KS" signals, the voltage of which is switched to the input of the measuring device of block 165 using a dial switch. The other two channels are threshold amplifiers designed to amplify the first-tone noise coming from blocks 152, 154 when checking the operation of video amplifiers using a generator of 169 control video pulses.

The generator 169 control pulses generates two types of signals: "KI" - 1 μs long and "DI" - 20 μs long. The signals are generated by waiting multivibrators, the start of which is carried out by pulses "ISK" from the communication unit 162. Multivibrator signals are fed to the inputs of a five-channel switch controlled by the output signals of the key transistor cascades, which, in turn, are controlled by the KI and DI circuits by signals from the decoder 168 of the control codes "NTK code" containing the number of the channel being monitored, which come from devices 13. The output signals of a five-channel switch through an amplifier branch out by an emitter follower to the inputs “KB” of the video amplifiers 152, 154 of the first tone.

In FIG. 8 structural and functional diagram of the device 13 conversion, display and control of the radar control system the following notation:

170 - amplitude meter,

171 - shaper code the angular position of the BV antennas,

172 - adder corrections for the angle

173 - storage device (memory) amendments in the corner,

174 is an information processing unit for an accurate bearing indicator (ITP),

175 - information processing unit for a detection indicator (IO),

176 - communication unit and duration selector,

177 - backlight unit,

178 - video monitoring device

179 - block of sights,

180 - remote control

181 is a control unit for displaying information on a sign board (ST),

182 - sign board

183 - synchronizer,

184 - shaper modulation signals,

185 - control unit,

186 - remote control local control device (MKU),

187 - control bus.

According to FIG. 8, the first input of the angle-correction adder 172 is connected to the output of the BV antenna angular position code generator 171, the input of which from the rotation drive sensor of the 18 BV antennas receives zero count pulses "Оφ _BV ") generated at each revolution of the antennas. At the second input of the adder 172 receives the code of the angular position of the MB antennas ("Code φ _AMB "), which is removed from the output of the communication unit 127 of the device 6 of the display and control of the radar. The third input of the adder 172 from the output of the synchronizer 183 receives a correction for the course and speed of its ship, the code of which (“NK code”) is received in the synchronizer 183 from block 1. The fourth input of the adder 172 from the correction memory 173 receives a correction for antenna alignment and correction to turn and offset the electrical axes of the antennas.

The codes of the current bearing of the antennas from the output of the adder 172 are transmitted to the inputs of the information processing blocks 174, 175 for ITP and IO, the input of the sight block 179 and the input of the communication unit 176 and the duration selector.

The information processing unit 175 for the detection indicator generates the polling signals of the receiving devices 10, 11, 12, carries out the reception and accumulation of detected signals "1t", "2t", "3t", "NSO" coming from the receiving devices 10, 11, 12, taking into account the angular position of the antennas at the time of receiving signals, and also provides the accumulation of information through the block 177 backlight for display on the screen of a video monitoring device 178.

The amplitude meter 170 measures the amplitude of the analysis video signals “1BA”, “2VA”, “3VA”, “NSA” coming from the receiving device 12, generates video signals “1A limited.” Exceeding the controlled threshold level,

and transmits the selected signals through the shaper 184 of the modulation signals to the device 14 analysis of the radar and data output.

The duration selector of block 176, which also receives signals “1A limit.”, Measures the duration of the analysis video signals that exceed the threshold and distributes the measured values into four duration zones, each of which can have two selection boundaries that can be changed by an operator’s command remote control 180.

The information processing unit 174 for the accurate bearing indicator provides reception and storage of the values of the amplitudes of the video signals received from the output of the amplitude meter 170, and the number of the zone of their duration from the output of the duration selector of block 176, taking into account the angular position of the antenna output to the ITP channel, as well as the generation of accumulated information through the block 177 backlight on the screen VKU 178.

The communication unit in block 176 provides amplification of the signals arriving at the transistor logic chip level from the control panel 180 (initial setting signals, read / zero pulses transmitted to the device 14), as well as signals from the control unit 185 (“NTk code”), which transmitted to the receiving device 10, 11, 12.

Block 179 of the sights implements the generation of codes of the sightings of the IO and ITP displayed on the VKU 178 screen, as well as control codes (the range number code is “Code Nd”, the code of the analysis filter number is “Code Nfa”, the tone number code is “Code NT”, the code of the level number is “Nyp Code”, the bearing code is “Code P”), as well as gates and sighting codes, directly and through block 176 transmitted to the receiving devices 10, 11, 12 and to the PRLS analysis and data output device 14.

The backlight unit 177 converts the signals coming from the blocks 174, 175, 179, 183 and from the device 14 into a voltage modulating the electron beam of the VKU 178.

VKU 178 is intended for displaying images of IO, ITP and a digital board. At the top of the VKU screen there is a detection indicator designed to reproduce signal marks in the coordinates “frequency channel number” - “amplitude” (accurate to the tone number) - “bearing”. The signal marks of each channel are indicated by segments of vertical lines, the height of which is determined by the amplitude (tone) of the received signal and is in a ratio of 1: 2: 3 when receiving a signal of the first, second or third tone. Position of signal marks on

the horizontal is determined by the angular position of the antenna, and the length is determined by the time of receiving signals in tones at each revolution of the antenna and corresponds to the angular width of the packets of signals in tones.

At the bottom of the VKU screen, a duration panorama indicator, an accurate bearing indicator, a digital display and an indicator of selection strobe marks by the repetition period of received signals (strobes Z1, Z2) are displayed.

The ITP shows the amplitude of the received signals with the number of display discrete 36 (12 discrete in each tone).

The signals on the duration panorama indicator are displayed as brightness marks located above each of the four thin horizontal lines marking one of the four duration zones.

The digital display contains the display of the frequency visor of the emitters (determined by the frequency channel number of the detected tone), the display of the bearing and the display of the sight of the ITP level. Above each scoreboard is indicated a pointer to the scoreboard. The frequency sighting board displays the channel number Nk and the tone number Nt in which the sighting device is located, the level sighting board indicates the Nyp level number in which this sighting device is located, and the bearing display indicates the bearing (in degrees) in which the IO bearing sighting device or bearing ETC.

The control panel 180 contains controls by which the following commands and control signals are generated: control signals of the drive modes 17 of the rotation of the MB antennas 15 (rotation / scan, rotation speed), which are transmitted to the device 6; control signals of channel switches PC ", which are transmitted to the control inputs of the switches P _III , P _V , P _VI ) device 9; mode control signals (“Choice”, “Auto Bearing.”, “Manual Bearing.”, “Issue”, etc.), which are transmitted to the device 14.

In addition, through the remote control 180, control signals are generated to provide information from the device 14 that is displayed on the sign board 182. These signals (“Target”, “TsU”, “KASU”, “Reset”) are transmitted through the information display control unit 181 to ST connected through IMPK-2 with the device 14. On the same line from the device 14 is transmitted data displayed on the scoreboard 182.

The synchronizer 183 generates synchronization pulses for the coordinated operation of the blocks of the device 13.

Shaper 184 modulation signals, amplifies the synchronization signal "IOF", transmitted to the receiving device 10, 11, 12, generates a control voltage "Ex. Mod. ”And compensation voltage“ Mod ”, which are transmitted through block 176, respectively, to the input of the modulator 25 of the bandpass filter and gain unit 19 and to the input of the compensation signal generator 158 of the receiving device 12.

Block 185 provides control of the PRLS in the modes specified from the 186 remote control unit, and diagnostic control of the health of the units and devices of the device. All blocks of the device 13 are connected to the control unit 185 by means of a control bus 187.

The remote control 186 MKU contains the controls and displays, through which the test modes of the PRLS devices are set and the status signals of the devices are displayed.

In FIG. 9 structural and functional diagram of the device 14 analysis of the radar and data output the following notation:

188 - duration meter (τ),

189 - meter repetition period (TP),

190 - meter of the rotation period of the radar antenna (Tob),

191 - a device for determining the maximum amplitude,

192 - switching device,

193 - automatic direction finding device (UAP),

194 block matching amplifiers

195 - block synchronization, amplification and switching,

196 - block signal generation initial setup,

197-remote control MKU

198 - computing device

199 - galvanic isolation unit (GR),

200 - input-output unit (BVV),

BMP1, BMP2, BMP3 - the first, second and third microprocessor units. The PRLS analysis and data output device 14 is designed to measure the temporal parameters of signals — duration τ, repetition period Tp, Tobs radar scan period, automatic or manual bearing measurement, calculation of target motion parameters along n - bearings when using your ship’s maneuver and forming

target designation data (TS) transmitted to the consumer (shipboard automated control system).

The initial setup signal generating unit 196 and the switching device 192 form the inputs of the device 14, to which the initial setup and control signals are generated, which are generated at the outputs of the control panel 180 and the communication unit 176 and the duration selector of the device 13, and the inputs of the matching amplifier unit 194 form the inputs of the device 14 to which the code signals “Code Nd”, “Code Nf”, “Code Nt”, “Code Nyp” are received.

A duration meter 188, to the inputs of which limited analysis video signals are supplied from the device 13, converts the pulse duration “1A limited.” To binary code and determines the pulse duration as the arithmetic average of two successive pulses.

The meter 189 of the repetition period, interacting with the meter 188, extracts the period of repetition according to the criterion of concurrence of three periods in a row and, at the expected time of the arrival of the next pulse “1A limited.”, Produces a gating capture pulse “Z” (6% of the period duration), which arrives at a duration meter 188 and to the maximum amplitude determining device 191, to the inputs of which the output signals of the receiving device 12 receive the analysis video signals “1BA”, “2VA”, “3VA”, “NSA”.

In addition, in the device 189, signals of coincidence and mismatch of signals “1A limited.” With gating pulses “t _cz1 ”, “t _cz2 ” are _generated , according to which the beginning and end of the pulse _{train are selected} in UAP 193.

The radar antenna review period meter 190 determines the rotation period of the MB antenna by determining the minimum time interval between bursts of pulses generated in the meter 189.

The measurement of time parameters is carried out by counting the number of scale pulses in the interval between the front and the pulse cut "1A limited."

At the end of the measurements, the meter 188 gives a signal indicating that the parameters τ, Tp, Tobz. measured.

In parallel with the operation of time meters 188, 189, 190 in the device 191, the maximum amplitude of the analysis video signals is extracted for transmission to UAP 193, which determines the bearing of the packet received from the main lobe of the antenna pattern.

In UAP 193, the bearing for each measurement is defined as the half-sum of the bearing codes of the beginning and end of the packet. The signal coincidence pulse "1A limited." With a gating pulse "t _cz1 " of the beginning of the packet coming from the meter 189, or three potential signals from the device 191 in the UAP 193 recorded code of the current bearing "Code P" coming from the device 13. For The end-of-pack code accepts the last current bearing value corresponding to the gate of the end-of-pack “t _cz2 ” and received from the same level as the signal for generating the start-of-pack code at the same antenna revolution. Bearing "Code P" is entered according to the signals "Imp. nullified ”and“ Imp. read. "in the presence of control signals" 0 "manual." or "0" ed. pel. ", formed by the working bodies of the remote control 180.

The 10-bit bearing code "P _USR " and the gates "Z1", "Z2" corresponding to two pulse repetition periods, from the output of the UAP 193 through the block 194 matching amplifiers are transmitted to the block 179 sights to form a sighting bearing on the indicator of the exact bearing displayed by the video control device 178.

Information in binary code generated by meters 188, 189, 190 of parameters τ, Tp, Tobz and UAP 193, as well as codes of the range number, filter number, tone number and level number received through block 194 matching amplifiers, and signals "BV" ( BV antennas), “BTs” (large target), “MTs” (small target), “CB” (own target) coming from the remote control 180 are transmitted to the switching device 192. The device 192 switching produces the formation of arrays of forms of the objectives of the radar for transmission to the computing device 198 through the block 199 galvanic isolation.

Two types of forms are transmitted to computing device 198. The first type of form is intended for indication on a sign board and contains the codes τ, Tp, Tobz. The second type of form contains the signs “BV”, “BTs”, “MTs”, “SV”, range, filter, tone and level numbers, and P (bearing), τ, Tp, Tobz codes. The exchange with the computing device 198 is initiated by the signals “Request 1” or “Request 2” depending on the type of transmitted form.

Computing device 198 comprises a galvanic isolation unit 199, an input-output unit 200, and three microprocessor units BMP ₁ , BMP ₂ , and BMP ₃ . In addition to the radar forms, the navigation device (“NK code”) coming from the radar display and control device 6 and the radar target forms coming from the radar signal processing and data processing unit 7 along the transformer interface line are entered into the computing device 198 through the GR unit 199

serial channel (TIPK-1). Target designation data (TSU) generated in the computing device 198 are transmitted to the consumer via the TIPK-2 highway.

The radar target forms adopted by the GR unit 199 are inputted through the I / O unit 200 to the BMP ₁ and the radar target forms and navigation data are entered into the BMP ₂ , which is connected to the BMP ₁ and BMP ₃ via the lines of the MPS ₁ MPS ₂ interprocessor communication. The data arrays generated by the computing device for displaying on the sign boards are displayed through the BMP ₁ , which is connected via IMPK ₁ to the information display control unit 119 of the device 6 and through the BMP ₂ , which is connected through IMPK ₂ to the information display control unit 181 of the device 13.

Block 195 synchronization, amplification and switching provides the formation of synchronization signals that ensure the operation of the device 14, amplification of the signals coming from the shaper 198, as well as amplification and switching of control signals generated by the controls of the remote control 197 MCU, and control signals coming from the blocks of the device 14, for indication on the panel of indicators of the panel.

During its operation, the radar complex provides detection of surface objects by the signals reflected from them and by their own radio emission, determination of coordinates and motion parameters of the detected objects, automatic or semi-automatic tracking of selected objects and delivery of the received information to the consumer.

The complex operates in active radar detection modes when using radar devices, passive radar detection when using PRLS devices, and active-passive detection.

With active detection, the radar operates when one of two probing signals of different structure is emitted. The first of them is an unmodulated frequency pulse signal used in conventional radars. At the same time, radar operation on probing pulses of both high power (when using a pulsed transceiver device 2) and low power (when using a pulsed operating mode of a transmitting device 3) is provided for, while pulses of short duration are used to solve navigation problems, which reduces dead area and increase resolution.

The second probe signal is a quasicontinuous LFM signal with tuning of the carrier frequency from package to package.

Due to the tuning of the frequency of the chirp signal, fluctuations in the amplitude of the reflected signal are significantly reduced, which can significantly reduce the threshold signal-to-noise ratio for given probabilities of correct detection and false alarms.

In a pulsed radar operation mode using a pulsed transceiver 2 (see FIGS. 2, 5), the required power of the emitted pulse is set by the signal from Channel 1, Channel 2, and the signal “Start” P "starts the transmitter of the device 2.

The probe signal from the output of the transceiver 2 through the RF switching device 5 is supplied to the third-range antenna (mirror antenna) of the block 17 of the combined antenna device 1 and is radiated into space.

The receiver of the transceiver 2 for the duration of the radiation of the probing signal is blocked by the waveguide switch 43 and the arrester 46.

The reflected signals through the waveguide switches VP ₁ , VP _{3 of the} device 5, the waveguide switch 43 and the arrester 46 are fed to the input of the UHF 47 of the receiving device and then processed by conventional methods.

Video pulses "Video 2" from the output of the main controller 58 of the receiving and transmitting device 2 are fed to the input of the switch 120 video signals in the device 6, which in the presence of the signal "Radiation 2" from the console 113 is transmitted to the output "Video 6" of the switch and then transmitted to the binary input quantizer 134 in the device 7. From the output of the binary quantizer 134, the digitized video signal is fed to the input of the drive 135 and is recorded in the RAM package. Further processing of the video signals in the device 7 is common to both pulsed and chirp signals, therefore, it will be considered below.

Consider the operation of the radar when emitting chirp signals.

The signal "Radiation 3" from the remote control 113 of the device 6 turns on the transmitting device 3 (see Fig. 3), generating probing LFM signals with a frequency tunable from parcel to parcel when using generators 64, 65 LFM, shaper 66 of deviations and a multi-frequency generator 70 synchronized by the pulses of the synchronizer 69. In this case, according to the control signal from the console 113 to the antenna path through the decoupling device 23 and connected in series VP ₂ , VP ₃ and

BP ₁ device 5 connects the output of the block 63 power amplifiers. The power level of the probe signal is set by the power control signals (Attenuation 1.2) and the signal “On. UM 2 ”when using two unit power amplifiers.

The reflected LFM signals through the decoupling device 23 are fed to the main input of the directional coupler 90, and from it to the UHF 91 of the receiving device 4 (see Fig. 4).

Two generators 64, 65 LFM are used in the device 3 to fill in the pauses between the LFM parcels for the time of the reverse frequency tuning.

The required value of the frequency deviation of the chirp signal is provided by frequency multiplication, division and conversion and is set by the control signals “Mod. 1 ”-“ Mod. 5 ", which are formed by the switches" Range scale "remote control 113.

In addition to the reflected LFM signals coming from the antenna path, a continuous reference signal “Geter 1”, generated at the output of the transponder 71, and three heterodyne signals generated at the outputs of the driver 76 of the heterodyne signals are fed to the receiving device 4 from the device 3.

In the receiving device 4 (see Fig. 4) after a triple frequency conversion, the spectrum of the reflected signals is transferred to the range of range frequencies.

The determination of the distance to the target when emitting chirp signals is based on the well-known method of comparing the frequency of the reflected chirp signals with the frequency of the reference chirp signal and isolating the oscillations of the difference frequency, the value of which determines the distance to the target.

The receiving device 4 includes a parallel-type frequency analyzer 104, consisting of 16 combs (blocks BF ₁ , ..., BF ₁₆ ) narrow-band, matched by bandwidth with the duration of the LFM sending filters.

Each comb contains 32 filters, with the total number of filters in the analyzer 104 overlapping the entire range frequency band.

In the analyzer 104, the frequency separation of signals reflected from objects located at different ranges is carried out, and the energy of the received signals is accumulated within the duration of the LFM sending.

The output signal "Video N", formed by sequentially polling the channels of the analyzer 104, enters the drive 135 of the device 7 (see Fig. 6) and after analog-to-digital conversion is recorded in its RAM parcels. Further in the drive

135 is the accumulation of packets of signals received from a given distance range, and transferring them to the 137 coordinate meter.

The recording of signals in the RAM of the parcels is synchronized by the polling pulses of the filters "NO Soft" and the clock pulses "TI" issued by the 137 coordinate meter, and the reading from the RAM of the parcels and writing to the RAM of the packets is synchronized by pulses from the timer of the computing device 130.

From the output of the meter 137, the signal intensity codes, range gates, the pulses of the beginning and the end of the survey are sent to a television digital converter 132, into which the current antenna bearing, navigation data (course, speed and directional angle of your ship) are given from the computing device 130, coordinates the visor, codes for the number and type of data of the goal forms.

In the computing device 130, which performs the secondary processing of information about the targets (determining the bearing and parameters of the movement of targets), from the device 6 through the external communication device 131, the navigation code “NK code” generated at the output of the communication unit 127, impulses of the angle of rotation of the antenna (+ q, -q, q ₀ ) generated at the output of matching device 121, the signal from the handle 114 of the control of the sight and the signals from the controls of the console 113, specifying the form and form of information displayed on the video monitoring device 112.

In the television digital Converter 132 scan using the Converter 138 coordinates, the conversion of information received in the polar coordinate system, into information presented in a rectangular coordinate system. The signals from the output of the coordinate converter 138 are used to form a panorama of the all-round indicator using the shaper 140, generate information for the exact coordinates indicator using the shaper 139, generate secondary information displayed on the PPI using the shaper 141, and generate the image of the sight using the shaper 142.

Shaper 143 of the video signal generates an output video signal from the signals coming from the shaper 140 IKO, shaper 139 ITC, shaper 141 secondary information and forms, shaper 142 of the sight. Synchronizer 145 synchronizes reading and writing to the RAM of the shapers.

The transformed information of the PCR 132 as a television signal "Video TV" is fed to the video input of the video monitoring device 112 in the device 6

Indication and control of the radar. The formation of a standard 625 line television raster on the screen of the video monitoring device is provided by the pulses of synchronization of the start of line scanning and the pulses of starting the scan of frames received on the said video monitoring device from the synchronizer 145.

The selection of targets for escort is carried out by sequentially combining on the screen of the ICO marker (visor) with marks of targets. More precisely, the marker is combined with the target’s mark on the TEC screen, which displays a portion of the PPI image enlarged by a predetermined number of times in the area where the mark is located (electronic moon). The display of the radar situation on the TEC screen is carried out in a rectangular coordinate system.

For targets taken for tracking, on the IKO screen, their speed vectors are displayed, the direction of which displays the course of the goals, and the value indicates the speed value.

Information about taken for maintenance purposes at a command from the remote control 113 of device 6 is issued from computing device 130 via communication adapter 147 and through the transformer serial channel (TIPK-1) highway is fed to PRLS analysis and data output device 14.

The composition of the goal form includes: goal number, its course, bearing, speed, range, type of tracking mode, as well as an assessment of the extent and intensity of the mark.

The latter allows you to classify the detected target on the basis of large or small.

The operation and interaction of the active channel devices is controlled by commands from the console 113 of the radar display and control device 6.

The initial information for generating control signals for the antenna stabilization drive 18 and generating the navigation data code generated respectively by block 122 of zero sensors and block 125 of digital angle conversion of device 6 are: the current values of the angles of the on-board θ and pitching Ψ pitching, as well as values of the course angle “K” and the speed “V” of the carrier ship coming from the gyro-pointer and lag.

The complex’s operation in passive mode is based on a sequential search for radio emissions in azimuth using low-directional fast-rotating (BW) antennas, a parallel frequency review with an indication of the panorama of the situation, and

also on the analysis, classification of received radio emissions and direction finding of their sources.

The RF signals of the radiation sources are received by weakly directed BW antennas of block 18, which provide a quick guaranteed search for sources of pulsed radiation in space in the frequency ranges III - VI. To ensure the possibility of receiving continuous signals in the IV range, the signals are modulated by a modulator 25, the control voltage of which comes from the device 13 (see Fig. 8) conversion, indication and control of the PRLS. In block 19, band-pass filtering and amplification of received emissions are carried out.

The amplified and modulated RF signals of band IV from the output of block 19 are fed to the corresponding input of the PRLS receiving device 12, and the RF signals of the III, V, and VI bands through the channel switches P _III , P _V , P _VI ] of the amplification and RF switching device of the PRLS respectively, to the inputs of the receiving devices 10, 11 and to the second input of the receiving device 12.

Radio emission signals in the ranges III, V, and VI are also received by the directionally oriented slowly rotating antennas of the combined antenna device unit 15. The MB antennas are surveyed by space and their rotation / scanning modes are controlled from the control panel 180 of the PRLS conversion, control and indication device 13.

When the active channel of the radar is emitting MB antenna, the band III antenna is not used.

In the passive mode, the band III radio emissions received by the mirror antenna of unit 15 are fed to the first input of the device 9 via the RF radar switching device 5, and the bands of the V and VI ranges received by the corresponding antenna of the unit 15 are fed to the second input of the device 9 and branched into two channels in the decoupling device 28. Then, after bandpass filtering and amplification of the RF signals of the III, V, and VI bands through the channel switches P _III , P _V , P _VI , respectively, are received at the inputs of receivers 10, 11 and at the second input of the receiver VA 12. The control signals of the switches, switching to the input of the receiving devices, the signals received by the BV or MB antennas are received from the control panel 180 of the device 13.

Receiving devices 10, 11, 12 receive radio emissions from sources and are built on the principle of direct amplification with subsequent narrow-band filtering of signals by the carrier frequency.

Devices 10 and 11 are identical in structure, and device 12 differs about them in that it processes signals of two ranges in parallel. In addition, it additionally contains a unit 156 VUA and ULFA and a linear switch 161 of the second stage, through which the analysis signals from all three receiving devices 10,11 and 12 are transmitted to devices 13 and 14.

Consider the operation of the PRLS receivers using the example of the operation of the channel of the band IV of the receiver 12, which also has a feature in terms of processing continuous signals (see Fig. 7).

At a UHF unit 150, high-frequency amplification and detection of video signals of the first, second, and third tones is performed with the separation of the first-tone signals into three channels by means of narrow-band filters with adjacent frequency bandwidths.

Then, in the blocks 153 ₃ , 153 _{2 of the} video amplifiers of the third and second tone, the analysis signals of the second and third tones are generated by means of a logarithmic amplifier, and the linear amplifiers produce separate amplification of short and long video pulses used to detect signals of the third and second tones.

In video amplifiers 154 ₁ , 154 ₂ , 154 _{3 of the} first, second and third frequency channels of the first tone, pulse and continuous signals are amplified by supplying pulse and continuous signals to the compensation input of the amplifier from the shaper 158 of the compensation signal, antiphase modulation voltage of the modulator 25, and then linear block amplifiers produce separate amplification of long and short pulses. The formation of the video signals of the analysis of the first tone is carried out in block 156 VUA and ULFA, the input of which through the linear switch 155 of the first stage receives signals from the emitter followers of the amplifiers of the ANN units 154 ₁ , 154 ₂ , 154 ₃ .

Further, according to the polling signals from device 14, the video signals of analysis “1VA”, “2VA”, “3VA” of the first, second, third tones of the VI and IV ranges, continuous video signals of analysis “NSA” of the IV range, as well as video signals of analysis “1VA”, “2VA ",

"3VA" from the receiving devices 10, 11 III and V ranges through the linear switch 161 of the second stage are issued to the device 13 and 14 for further processing.

The signals of the second and third tones from the outputs of the blocks 153 ₃ , 153 ₂ and the signals of each channel of the first tone from the outputs of the video amplifiers 154 ₁ , 154 ₂ , 154 ₃ are received in the UPOI 160, where they are compared with the threshold level with the binding of the signals of the second and third tones to the frequency channel (signal of the first tone), which is carried out by fixing the moments of coincidence in time (gating). The signals that entered the strobe are stored for the time necessary for interrogating all the channels alternately with the polling signals from the device 13.

According to these polling signals, the signals “1t,” “2t”, “3t”, which exceeded the detection threshold, are transmitted from the outputs of the receiving devices 10, 11, 12 to the device 13, where they are recorded in the RAM of the information processing unit 175 for the detection indicator, whose address corresponds to the number of the interrogated frequency channel and the current rough bearing corresponding to the position of the channel antenna at the moment the signal exceeds a threshold level. In the absence of signals from devices 160 in subsequent polling cycles, information previously recorded in RAM is stored, and if there are signals, it is updated.

Information about the current value of the angle of rotation of the rapidly rotating antennas of the block 20 is removed from the rotation sensor, which generates zero count pulses for each revolution of the antenna. These pulses are fed to a code generator 171, where they are converted to a 10-bit code, which in the adder 172 of angle corrections is summed with corrections that take into account the relative positions of the antenna antennas and the offset of the electrical axes of the antennas.

When using MB antennas, the codes of their angular position enter the adder 172 from device 6. The value of the correction, which takes into account the rotation of the sensor of the angular position of the antenna in the device 1, is determined in the process of adjusting the passive channel of the radar.

Thus, in the RAM of the information processing unit 175 for the detection indicator, information about the emission panorama is recorded in the coordinates "frequency channel number - bearing". Each frequency channel in the panorama has a separate line. The height of the mark in the line is determined by the tone number, and the higher the tone number, the higher the mark.

The reading of information from the RAM unit 175 is synchronized by the pulses of the synchronizer 183. The information read from the RAM is supplied to the video monitoring device 178 through the backlight unit 177.

Detection indicator sights generated by the block 179 sights can be moved along the bearing (sight indicator of the detection indicator angle) and frequency channels (frequency sight of the detection indicator). Detection indicator sights can be used by the operator for rough direction finding and signal strength estimation.

The video analysis signals “1VA”, “2VA”, “3VA” of each frequency range and “NSA” of the IV range using a two-stage switching system (linear switches 155, 161) for the selected channel are fed to the amplitude meter 170, where the level of video signals is compared with the threshold levels with the subsequent generation and storing in the memory registers the code of the signal level and the formation of amplitude-normalized impulses “1A limited.”, which are transmitted to the device 14 for measuring the repetition period and pulse duration for the purpose of Lisa and classification. In this case, only video signals of the tone in which the target of the fine bearing indicator threshold is located and whose amplitude exceeds the level occupied by this target are received. The position of the sight is set by the operator.

Normalized pulses "1A limited." Are selected by duration in block 176 into four zones of duration. The arrival of pulses in the corresponding zone is fixed in the memory register. The information recorded by the memory register is entered into the RAM of the ITP information processing unit 174 at the address of the current antenna bearing, after which the memory registers are reset to zero synchronously with the change in the code of the current antenna bearing. Zero cycles and records are repeated. Thus, in the RAM block 174 is recorded information about the level and duration of the signals.

To indicate the ITP information from the RAM unit 174 is fed to the video monitoring device 178.

The image on the ITP is indicated in the coordinates "amplitude-bearing" in the form of bursts of pulsed (continuous signals). Marks corresponding to the gates “Z1”, “Z2” for two pulse repetition periods entering the block 179 sights from the device 14 are displayed in the form of brightness marks under the ITP, which allows the operator to select signals according to the ITP.

At the operator’s command, instead of the ITP image, the following can be performed:

- indication of the viewing period in amplitude-time coordinates in the form of amplitude marks approximately reproducing the radiation pattern of the antenna of the radio emission source during its rotation;

- indication of the wobble period (only for receiving signals by rapidly rotating antennas) in the coordinates "delay-bearing" in the form of point marks, the position of which is determined by the value of the time intervals between pulses. To measure the bearing and amplitude by the signal displayed on the ITP, the sights of the bearing and amplitude are displayed on it. The movement of the sights along the bearing and amplitude is carried out using the control handle on the remote control 180.

The ITP level sighting device is also used to offset the indicated portion of time delays within the viewing delay interval and to estimate the delay value.

To measure the time parameters of the signals, the limited analysis video signal “1A limited.”, Generated by the amplitude meter 170, enters the meters 188, 189 190 of duration τ, the repetition period T _p and the review period T review of the _PRLS analysis device 14 and data output (see Fig. 9).

The measurement of duration consists in counting the number of clock pulses for the corresponding time interval.

The meter 189 T _p determines the pulse repetition period of one or two (if any) pulse sequences in the selected frequency channel. According to one of the pulse sequences, a selection strobe is formed over the repetition period T _p . The measurement of the duration m and the review period T _{obz is} made in this strobe.

For the selected radio emission, the operator can assign the number of the radiation source and send to the device 14 data: the number of the frequency channel, time parameters τ, T _p , T _review , which are entered into the target form.

The characteristics of each target (target forms) detected by the radar station and the characteristics of the targets detected by the radar are stored in the memory of the computing system 198 of the device 14, which performs tracking of targets until a command is received from the control panel 180 of the device 13 to reset the information for this target. According to the operator’s commands, the forms of the selected targets stored in the memory of the computer system are displayed on the sign board 182 of the device 13 and the sign board 118 of the device

6. At the same time, the temporal radiation parameters are displayed on the sign board, according to which the measurement is made and to which the target number has not yet been assigned.

For the selected target, a classification can be carried out at the operator’s command the types of radars that the obtained parameter estimates can correspond to are identified, as well as the signs of the target: large or small, etc. The classification is made by comparing estimates of the carrier frequency, repetition period T _p , pulse duration τ, review period T _review with parameters of known types of radar (library), the values of which are stored in the memory of computing system 198 of the measuring and computing device 14. The target is “BC” (large target), “MC” (small target), “CB” (own target) can be entered into the target form at the command of the operator.

The computing system 198 of the device 14 performs the calculation of the range and parameters of the target’s movement along n-bearings when applying the maneuver of the carrier ship. In this case, the operator performs direction finding 1-2 times per minute and provides information on the selected target to computer system 198, which cyclically solves the range determination problem for each output. In addition to bearing estimates, when solving the problem of determining the distance to the radiation source, data are used on the course K and the speed V of the carrier ship.

The obtained data on the coordinates and motion parameters of the radiation source are entered into the target form.

From the generated array of target forms, any of them can be removed from the memory of the computing system of the device 13 by a command from the control panel 113 of the device 6 or from the control panel 180 of the device 13 and issued to the consumer.

Serviceability of the radar system is carried out by built-in monitoring tools, the description and operation of which are given in the description sections of the corresponding devices of the complex.

The built-in monitoring tools perform both continuous monitoring of the health of devices and periodic monitoring in functional control modes (FC).

Continuous monitoring of the health of complex devices is ensured by checking the following parameters:

- in the transceiver device 2 by means of the built-in control unit 59, the parameters of the probing pulses, video signals of the receiving device and clock pulses are controlled;

- in the transmitting device 3 through the built-in control device 78 controls the linearity of the frequency modulation, the parameters of the synchronization pulses and the level of microwave power;

- in the device 6 for indicating and controlling the radar by the calculator program in block 126, the correct operation of the drive control unit 126, the communication unit 127 and the communication channel with the digital angle conversion unit 125 is checked;

- in devices 7 and 14, the software of computing devices checks the correct functioning of data processing devices and external communication devices.

The health signals of the monitored devices are displayed on the health display of the control panel 113, and in the event of the failure of the signals, fault diagnostics are performed to repair or replace the faulty unit.

Periodic monitoring of the health of radar station devices is performed in the “FC1” - “FC4” modes.

In the "FC1" mode, the functioning of the radar as a whole (without a transceiver 2) is controlled using the first simulator 22 of the reflected signal, which is connected instead of the antenna path to the input-output of the isolation device 23. As a simulator 22, a hypersonic delay line is used. The control signal simulates a target located at a distance of 0.65 miles, the image of which is displayed on the circular viewing indicator of VKU 112 of device 6. The target location and its dimensions characterize the accuracy of determining the range and the linearity of the chirp signal.

The functioning of the receiving device 4 is monitored by a microwave signal generated by the noise generator 96, which is connected through the second (control) input of the directional coupler 90 to the input of the UHF 91. When the noise generator 96 is in operation, the noise level at the output of the receiving device 4 is no less than 2 , 7 times higher than the level of intrinsic noise, as a result of which continuous noise illumination is observed on the IR. Turns on the generator 96 noise signal "On. GS "formed at the output of the remote control 113 of the device 6.

The noise figure of the receiving device is controlled by measuring the noise voltage “Video Ш” at the output of the analyzer 104 when the noise generator is turned off and the noise generator is turned on, and the noise figure is then determined from the graph.

The functioning of the analyzer 104 of the frequency of the device 4 is checked in the mode "FC2" by the nature of the movement of the control signal on the IR. The control signal is generated by the tunable frequency generator 109 of the analyzer control unit 108. The output of the GPC 109 is alternately connected to the control inputs of the BF ₁ , ..., BF ₁₆ blocks (filter banks). The trapezoidal GPC signal is supplied by bursts of at least 0.5 with a repetition period of 0.9 s. During the burst, the frequency of the GPC is tuned in the range of at least 156.7 - 159.9 kHz. The control signal, tunable in frequency in the filter band of the comb, when the analyzer is in good working order, must move sequentially to the IKO in the range section corresponding to this filter comb.

In the “FK3” mode, the built-in monitoring tools carry out diagnostic monitoring of radar devices, which consists in measuring the parameters to be monitored using measuring instruments in the monitoring units.

In the FC4 mode, the operation of the radar when working with a powerful pulse transmitter of a transceiver device 2 is checked. In this case, an echo camera 24 is used as a simulator of the reflected signal, which is connected via a waveguide-coaxial transition 41 to the second tap of the directional coupler 40, the first tap of which through FPV 37 and the HO block 36 are connected to the outputs of the magnetron generators 34, 35, and the fourth tap of the HO 40 through the FPW 38 and the arrester 46 is connected to the input of the UHF 47. The greater the pulse power of the transmitter and the more accurate the tuning to an echo camera at its carrier frequency, the greater the amplitude of the vibrations excited in the camera. On the other hand, the more sensitive the receiver, the lower the amplitudes of the oscillations will be indicated on the IR and the longer the process of sounding the echo camera will be observed, which allows us to judge the energy potential of a powerful pulsed radar transceiver.

The level of the radiated average power of the transceiver 2 is checked using a wattmeter, which is connected to the output of the directional coupler 43 through the path waveguide attenuator.

To check the sensitivity of the receiving channel of the transceiver device, a sensitivity control device based on an RF generator 61 with a built-in attenuator and a pulse generator 60 synchronized by Start P pulses, which are generated by unit 121 of the device 6, is used. The output signal of the RF generator tuned to the carrier the frequency of the magnetron generator 34 (35), through the waveguide-coaxial junction and a ferrite gate is fed to the input of the UHF 47. Before starting the measurements, the initial value is fixed on a scale attenuator attenuation with a generator power of 10 _-4 watts. Changing the frequency of the RF generator 61, receive on the IKO VKU 112 the image of the video signal on the scan. Gradually introducing attenuation by the attenuator and at the same time adjusting the frequency of the generator, notice the moment the video signal disappears on the IR at the maximum attenuation attenuation value. Check the calibration of the output power of the generator relative to the level of 10 ^-4 W and determine the sensitivity of the receiving channel according to the calculation formula that takes into account the initial reading of the attenuator scale corresponding to the power level of 10 ^-4 W and the value of the maximum attenuation.

Periodic monitoring of the health of passive radar devices is carried out in the modes "FC1" - "FC3".

In the FC1 mode, the performance of the RF circuits of the receiving devices 10,11, 12 is monitored from the 18 BV antenna unit to the primary processing devices 160 of the receiving devices 10 - 13. For each range, the operability is checked for all three tones, and corresponding health signals are generated , which are added to form a generalized health signal.

Control in the FC1 mode is carried out as follows. According to the signal "FC1" from the remote control 186 MKU voltage is supplied to the rectifier supplying the noise generator 21. GS 21 generates a wide-range control signal, which is emitted by the control antenna 20 and enters the antennas of unit 18. The control RF signals transmitted through the bandpass filtering and amplification unit 19 and through the channel switches of the device 9 are supplied to the receiving devices 10, 11, 12. receiving devices 10, 11, 12, the control signals are amplified in blocks 149 (150) UHF and in blocks 151, 152 (153, 154) of video amplifiers, and then compared with a threshold level in devices 159 (160) of primary processing, control registers of which form signals "Counter . 2I ”,“ Counter 3I ”upon detection of signals in the corresponding

threshold processing channels. These signals are received in the communication unit 162, and from it to the inputs of the conditioner 166 of the health signals.

The serviceability of the UHF of the second and third tone is monitored by the passage of the GSh 21 signal, therefore, the presence of a normal noise level at the output of the UHF of the first tone indicates its serviceability. The noise of the first tone output is fed to a video amplifier, in which the ball chain is disconnected by the FC1 signal, and then from the KS output of the video amplifier to block 167 noise amplifiers and threshold devices. When the threshold is exceeded, in block 167, a working tone of the first tone is generated, which is supplied to the shaper of working signals 166 and summed in it with the working signals "Counter. 2I "," Counter. 3I ”to generate a generalized health signal for each range. Health signals in tones are fed to indicators installed on the front panels of the devices 164 for monitoring receiving devices, and are issued to the remote control 186 MKU on the corresponding health indicators of the receiving devices.

In the "FC2" mode, all video channels of the receiving devices 10, 11, 12, the amplitude measuring devices and the duration selector blocks 170 and 176, the information processing units 174, 175 for the ITP and the IO are checked and a generalized health signal of the PRLS conversion, indication and control device is generated. At the same time, the control video signals of short and long pulses “KI”, “DI” generated by the generator 169 control pulses are fed to the KB inputs of all video amplifiers 151, 152 (153, 154) of the receiving devices 10, 11, 12. The control signals for the alternate supply of control video pulses "Code N _TK1 ", "Code N _TK2 " are generated by the 186 MKU remote control and issued through the communication unit 176 and the duration selector to the decoder 168 control codes.

In the event of a malfunction in one of the video channels, the operator detects the absence of the detection indicator frequency moving from top to bottom when the Program Shift + button is pressed on the remote control 180. The number of the faulty channel is indicated on the VKU 178. To continue the program for checking the video channels, the operator sets the next channel number on the VKU.

The health of the VKU is controlled by the operator visually by the presence of marks on the screen when checking in the “FC2” mode.

In the "FC3" mode, the passage of the control video signal packets "KI", "DI", "NS" through video amplifiers 151, 152 (153, 154) and devices 159 (160) is controlled

primary processing of receiving devices and verifies the operability of the device 14 analysis of the radar and data output. Packs of control video signals are formed when the operator alternately presses the “CB”, “ _BTs ”, “ _MTs ” buttons of the remote control 180, in which codes “Code N _TK1 ”, “Code N _TK2 ”, gated by signals “0” A1, are generated in the control unit 185 , "0" A2 "of these buttons. The control codes generated in this way through the decoder 168 are fed to the switch of the generator 169 control pulses, the output of which is formed by a packet of control pulses that simulate the reception of real packets of signals, direction-finding radar. Since the repetition frequency of the strobe signals is different, in order to obtain a fixed mark from the control signals at the VCU, the formation of independent control signals for each of the receiving devices is used.

Thus, in the modes of functional control, a search is made for the place of failure with an accuracy to the instrument and channel. The search for a place of failure with an accuracy of a replaceable unit (unit) is carried out manually by the operator using the built-in measuring instruments.

Thanks to the introduction of built-in monitoring tools, the proposed radar system has high reliability in the operation of radar detection of single and group surface targets, tracking and classification of targets, determining their current coordinates and movement parameters, and preparing and issuing target designation data.

The presented drawings and description allow using the existing element base and technology to manufacture the radar system in an industrial way and use it for its intended purpose, which characterizes the proposed utility model as industrially applicable.

Information sources:

1. Radio engineering systems / ed. Yu.M. Kazarinova. - M .: Owls. Radio. - 1968, p. 271, fig. 6.19.

2. Shipborne radar systems and their applications / ed. V.I. Rakova. - L .: Shipbuilding. Lenizdat. - 1970 - P.231, Fig. VIII-2 /.

3. RF certificate No. 5262 for utility model, IPC G01S 13/87, G01S 13/34 publication of 10/16/1987, prototype.

Claims (1)

A shipborne radar system containing a combined antenna device, including a slowly rotating (MB) antenna unit, kinematically connected to a rotation drive and stabilization drives, a radar station, which includes a radar high-frequency (RF) switching device based on waveguide switches , which are connected respectively with the antenna of the third range of the block of MB antennas, with a pulse transceiver device and through a decoupling device - with a transmitting and receiving device of linear frequency-modulated (LFM) signals, a radar signal processing and information conversion device, the first information input of which is connected to the output of the LFM signal receiving device, and a radar indication and control device, as well as a passive radar station (RLS), which includes an antenna device for detecting PRLS, the outputs of the block of rapidly rotating (BW) antennas of which are connected through the block of bandpass filtering and amplification with the first inputs of the signals of the third, fifth and sixth ranges of the device amplification and RF switching of the radar, the second input of the signals of the fifth and sixth ranges of which is directly connected to the corresponding antenna unit of the MB antennas, the second input of signals of the third range is connected to the corresponding waveguide switch of the RF switching device of the radar, and the outputs are connected to the inputs of the corresponding receiving devices of the radar , the outputs of the signals of the first, second and third tones of which are detected during threshold processing are switched to the corresponding inputs of the conversion, indication and control device RLS, and the outputs of the video analysis signals are switched to the corresponding inputs of the conversion, display and control device of the RLS and the analysis device of the RLS and data output, which is connected to the output of information data about the goals of the signal processing and information conversion radar device, the second information input of which is connected to the output of the pulse video pulses transceiver device through a synchronization and switching device, which is part of the radar display and control device, which also contains video a control device connected to the television video signal output of the radar signal processing and information conversion device, a mode control panel, at the corresponding outputs of which channel switching signals of the RF radar device and control signals of the pulse transceiver device and the transmitting and receiving devices of the LFM signals are generated, block zero sensors, the information inputs of which receive on-board and pitching signals, and the initial signals are generated at the outputs installation of stabilization drives, a gain and conversion unit, the outputs of which are connected to the control inputs of the rotation drive and stabilization drives, and the inputs of the error signals are connected to the corresponding outputs of the stabilization drives and the output of the rotation drive control unit, which is connected to the digital angle conversion unit, to the corresponding inputs of which a signal of the current angle of rotation of the MB antenna from the drive of rotation and signals of the heading and speed of the ship, and with the communication unit, through which to The output input of the radar signal processing and information conversion device is transmitted the MB-antenna rotation angle increment signal, the navigation data code and the current angular position code of the MB antenna are transmitted to the corresponding inputs of the radar conversion, display and control device of the radar and the radar information processing and signal conversion device, and the current angular position code of the MB antenna the output of the communication unit and a signal of zero reference from the information output of the drive of the BV-antenna unit are fed to the corresponding inputs of the PRL conversion, indication and control device characterized in that the first simulator of reflected signals is introduced into it, connected through the corresponding waveguide switch of the RF switching device of the radar and the decoupling device with the signal output of the transmitting device of the chirp signals and the signal input of the receiving device of the chirp signals, the second simulator of reflected signals connected to the control input -the output of a pulse transceiver device, a radar noise generator connected to a control input of the chirp signal receiving device, a PRLS noise generator, connected to the control antenna, and also built-in monitoring devices in a pulse transceiver, transmitters and receivers of chirp signals and PRLS receivers, in addition, the transmitter of chirp signals is configured to generate pulsed probing signals, and the receiver of chirp signals with the possibility of generating pulsed video signals that are transmitted to the second information input of the signal processing device and converting radar information through the device synchronization and switching in the radar indication and control device, which further comprises a drive mode switching unit, the output of which is connected to the input of the rotation drive control unit, and the inputs are connected to the outputs of the signals for setting rotation modes of the rotation control panel and the control panel included in the conversion device , indications and management of PRLS.