RU2204786C2 - Weapon radio control system - Google Patents

Abstract

FIELD: systems of radio control of weapon, mainly, antiaircraft guided missile-gun systems containing target radio sighting aids and a guided missile combined with its launcher by a common transport platform. SUBSTANCE: a two-range monopulse radar is used for provision of equal intermediate frequencies of primary transduction of signals in multirange receivers and a unit of their control in a common path of secondary transduction, as well as in the use of single channels of transmission and reception of signals of radio sighting both of the target and signals of command radio control of the shot. EFFECT: enhanced operating workability of the system and its readiness for use. 2 cl, 4 dwg

Description

 The invention relates to the field of weapon control, to its special case - radio control, and more particularly to weapon radio control systems (SRO) of air defense (air defense), including radio visions of a target and a guided projectile, combined with its launcher by a common vehicle.

 The invention can be used mainly in mobile anti-aircraft missile-cannon kits (SAM) installed on self-propelled chassis, trailers, boats and other vehicles with restrictions on weight, dimensions and conditions of use.

 SRO including for air defense missile defense are known (1), (2).

 Known mobile air defense missile systems with self-propelled guns, consisting of a radio vision of the target (RVC), a radio vision of a projectile (RVS) and a launcher (launcher), placed on separate vehicles (3), (4).

 SROs are known for mobile air defense systems, consisting of RVC and RVS combined with a guided projectile launcher by a common transport platform (5).

 In such SROs, monopulse radars, including dual-band radars (5), (6)), are mainly used as RVCs, and command radio control lines (7) as RVS. PUs are used depending on the type of weapon (shells) and type of vehicles (2), (4).

 Of the known technical solutions, the closest prototype is the SRO described in (5).

 The well-known SRO includes RVC and RVS, combined with PU automobile semi-trailer.

 The RVC of this SRO contains a dual-band monopulse radar (DMRL) with a common antenna, a range of transceiver paths, each of which consists of a microwave unit (antenna switch), a transmitter, a multi-channel receiver, blocks of useful and interfering signals.

 The RVS contains an autonomous antenna mechanically coupled to the antenna column of the RVC common antenna and a command radio control line in the form of a request-response system with transmission, reception, encryption and decryption blocks of transmitted and received commands and signals.

 This SRO also contains a servo system for controlling the antenna column, a data processor (computer), a synchronizer, a range finder, indicators and built-in control.

 The radio control object of the famous SRO is ground-to-air guided missiles with semi-active homing heads and radio-correction of their flight direction.

 The communication of the data processor (computer) in this SRO with the weapon control system is carried out through the interfaces of the communication unit, through which the SRO also interacts with other weapon control subsystems: an optical range finder, a television monitor, and a heat finder.

 The use of DMRL with built-in control and command radio control line as the RVC and RVS significantly increases the noise immunity of the SRO of this class of air defense systems and its operational manufacturability. (ET - a generalized concept of reliability, testability, maintainability and security of maintenance and readiness of SRO for use).

 However, the conditions for the use of mobile air defense systems, in contrast to stationary air defense systems or separated by the area of separate air-defense systems, air-force systems and missile systems, impose stringent restrictions and requirements on mass, dimensions, reliability, energy consumption and other factors that directly or indirectly affect the ET SRO and its readiness for action.

 Therefore, in some cases, the ET SRO of the considered class of air defense systems is insufficient. One of the ways to increase it is to simplify the SRO.

 Thus, the objective of this invention is to increase the ET SRO and its readiness for action by simplifying its electrical circuit and design.

 The task is achieved by the fact that in the claimed SRO DMRL is performed with the possibility of providing equal intermediate frequencies (IF) of the primary conversion (IF-1) in multichannel receivers of both ranges and with a block of compression of these signals in the common path of the subsequent secondary conversion (IF-2) and signal extraction, and the RVC blocks are also used to transmit and receive RVS signals. To do this, the command encoder for the guided missile (projectile) is connected through the switch to the start circuit of the transmitter of one range, and the decoder of signals received from the rocket is included in the receiver circuit of another range. In this case, the DMRL alternately performs the functions of the RVC and RVS.

 In FIG. 1 shows a block diagram of an SRO; figure 2 and 3 - embodiments of the block signal compression. Figure 4 shows diagrams explaining the principle of signal compression and operating modes of SRO.

Symbols in figure 1-4 correspond to:
1 - reference generator of the driving frequencies;
2 - transmitter of the 1st range;
3 - transmitter of the 2nd range;
4 - multichannel receiver of the 1st range;
5 - multi-channel receiver of the 2nd range;
6 - system synchronizer;
7 - transmitter start switch 3;
8 - command encoder;
9 - rocket signal decoder;
10 - signal compression unit;
11 - path secondary conversion and signal extraction;
12 - indicator;
13 - antenna column;
14 - data processor and control modes;
15 - communication unit;
16 - weapons launcher;
17 - drive antenna (antenna column);
18 - a common antenna;
19 - antenna switch of the 1st range;
20 - antenna switch of the 2nd range;
21 - 1st switch unit 10;
22 - 2nd switch unit 10;
23 - 1st channel input of block 10;
24 - 2nd channel input of block 10;
25 - 1st output of block 10;
26 - 2nd output of block 10;
27 - 3rd output of block 10;
28 - control input of block 10;
29 - 1st high-frequency (HF) element OR;
30 - 2nd high-frequency (HF) element OR;
31 - 3rd high-frequency (HF) element OR;
32 - clock pulses Ti ₁ ;
33 - clock pulses Ti ₂ ;
34 - clock pulses Ti ₃ ;
35 - synchronizing pulses C ₁ ;
36 - synchronizing pulses C ₂ ;
37 - synchronizing pulses C ₃ ;
38 - radio pulses RVC 1st range;
39 - radio pulses RVC 2nd range;
40 - radio pulses of the RVS;
41 - video pulses RVC 1st range;
42 - video pulses RVC 2nd range;
43 - video pulses PBC;
44 - the sequence of video pulses RVC and RVS;
45 - target speed (V _c ) and projectile (V _c ).

"From the above, the composition of the DRL includes the following elements and devices: 1, 2, 3, 4, 5, 11, 18, 19, 20, which in essence are elements and devices of single-band monopulse radar, which in the DRL have a common synchronizer 6, indicator 12, data processor 14 and a servo system - drive 17 of the antenna column 13 with a common antenna 18. (For more information on the elements of monopulse radars, see A.I. Leonov, K.I. Fomichev's book. Monopulse radar. M., "Soviet Radio ", 1970, 389 p.)"
The inventive SRO works as follows.

 The reference reference frequency generator 1 (FIG. 1) generates a highly stable reference frequency, which is used to generate carrier and heterodyne frequencies in the range of transmitters 2,3, multi-channel receivers 4,5 of the primary conversion and the common path 11 of the secondary conversion.

 The multiple-divided reference frequency of the generator 1 is also introduced into the synchronizer 6 of the system, where it is used to generate clock and synchronizing pulses (T and C, respectively) that determine the time intervals of the system in the RVC and PBC modes, and pulse filling of these intervals (Fig. 4).

 Xi are introduced into the mentioned devices 2,3,4,5, as well as into the switch 7 for launching the transmitter 3, the encoder 8 commands for the rocket, the decoder 9 of its response signals, the signal compaction unit 10 ПЧ-1, the secondary conversion path 11 to ПЧ-2 and the allocation of the signals of the RVC and RVS (with a controlled local oscillator) and indicator 12.

 Ty enter the switch 7, the encoder 8, the decoder 9, block 10 and path 11. The synchronizer 6 of the system is controlled by the processor 14 data and control the operating modes of the CPO, connected via interfaces to the communication unit 15, with the launcher 16, the indicator 12 and the drive 17 controlling the common antenna 18 (or antenna column 13, if necessary, to control adjacent weapons control devices (optical, television, etc.) aligned with it).

 Antenna switches 19 and 20 carry out the switching of the range of radar devices for transmitting and receiving signals RVC and RVS.

 The heterododing system of multichannel receivers 4 and 5 is implemented in such a way as to ensure that their outputs have equal intermediate frequencies at IF-1.

 Receivers 4 and 5 usually have three outputs: one total and two differential. From these group outputs, the signals to the inverter-1 are input to the compaction unit 10, from the output of which the signals are alternately output: either the 1st-class RVC (RVC-1), or the 2nd-range RVC (RVC-2), or RVS.

 The essence of signal compression using block 10 is simplified as follows.

 The design of the block 10 may be different. When controlling from Ti (Fig. 2), block 10 contains switches 21.22 with two group inputs 23.24, three outputs 25.26.27 and control inputs 28 by Ti. In an embodiment, on logical RF elements OR (Fig. 3), this block may contain elements 29.30.31 OR connected to two group inputs 23.24 and also with three outputs 25.26.27.

 The second example of execution is different in that it does not require control from Ti, and the synchronizer 6 of the system can provide the switch functions by setting the corresponding C sequences in the Ti intervals.

In both cases, pulses 32,33,34 specify the time intervals Ti ₁ , Ti ₂ and Ti ₃ , during which pulses 35,36 and 37 are formed, respectively, Cu ₁ , Cu ₂ and Cu ₃ for the RVC-1, RVC-2 modes and RVS (in Fig. 4 the latter are shown conditionally at different repetition frequencies for RVC, and for RVS - with time-pulse coding and decryption).

 The signals received from the target and the missile at the outputs of the receivers are allocated in the form of radio pulses 38 and 39, respectively, for each of the three channels RVC-1 and RVC-2 and radio pulses 40 of the channel RVS.

The radio pulses 38,39,40 alternately in the time intervals Ti ₁ , Ti ₂ and Ti ₃ from the outputs 25,26,27 of the signal compaction unit 10 are received in the path 11 of the secondary conversion and separation of signals, where they are converted, amplified, time and frequency selected, amplitude and phase detection.

From the three outputs of the path 11, the video pulses 41,42,43 enter the data processor 14 and control modes, where information from the sequence of 44 pulses RVC-1, RVC-2 and PBC is extracted information about the parameters of the target and missiles, for example, about their speeds 45 relative to SRO ( conditionally V _c - for the purpose, V _c - for the rocket).

 The decoding of the video pulses 43 of the PBC is performed in the decoder 9 of the received signals according to their time-pulse arrangement, and its results are input through an additional input to the data processor 14.

 From the outputs of the data processor 14, the extracted information about the target and missile parameters is displayed on the indicator 12 and through the communication unit 15 in the weapon launcher 16 or is used for radio correction via the PBC channel of the rocket's trajectory and flight direction.

 To implement most of the devices of the proposed SRO, mainly standard circuitry solutions and designs described in the cited or general technical literature, or design documentation and equipment for their manufacture, which the applicant has, can be used.

 Block signal compression can be performed but one of the proposed options. It is assumed that multi-channel multi-channel receivers with a common signal conversion and extraction path have controlled systems for heterodyning frequencies, automatic gain control and receiver bandwidth adjustment.

 The communication unit and launchers are made for specific types of weapons.

 As a result of the use of the invention, the design of the receiving paths of the DMRL is simplified, there is no need for an additional antenna system and a transceiver path of the PBC, since their functions are performed by the DMRL, the operational adaptability of the SRO is increased and its readiness for action by increasing reliability, reducing energy consumption, dimensions, mass, greater compactness and sociability of the SRO as part of the considered class of air defense systems.

 The invention can be used in the development of the applicant.

LITERATURE
1. The basics of radio control. Ed. V.A. Weitzel and V.I. Tipugina. Textbook for universities. M., Sov. Radio, 1973, 464 pp.

 2. Anti-aircraft missile and missile-gun systems of the capitalist countries. Ed. E.A. Fedosova. M., SIC (770), 1986, 249 p., Ill.

 3. There. ZRPK "Flyketcher". p.143.

 4. JANES RADAR AND EEECTRON1C WARFARE SYSTEMS. 1993-94. To the same English Edition. 1996-97.

 5. Weapon control radar. Wang Yui, Pehg Jiating, CIE int. Conf. Radar Nanjing. Now. 4.04.86 - Beijng 1986. p.27-32 (England. A copy of the block diagram from this source is attached).

 6. Dual-band monopulse radar with integrated control. Application 2001104500 dated 02.20.2001. Applicant: OJSC "Corporation" Fazotron-NIIR ". Authors: Kanaschenkov A.I., Matyushin A.S. and others.

 7. Handbook of electronic systems. Volume 2. Ed. B.Kh. Krivitsky. M., Energy, 1978. Section 8. Command radio control systems, p. 201-261.

Claims (2)

 1. Weapon radio control system, including target and guided projectile radio visors combined with its launcher by a common transport platform, containing a dual-band monopulse radar with a reference frequency generator, a command radio control line with an encoder and decoder, synchronizer, data processor, indicator, communication unit with a weapon launcher and a servo control system for the antenna column of the system, characterized in that the dual-band monopulse radar with the ability to ensure equal intermediate frequencies of signal conversion in multichannel receivers of both ranges and their compression unit, which is connected between the outputs of these receivers at the first intermediate frequency and the inputs of the common signal conversion and extraction path at the second intermediate frequency, while a transmitter of one range is connected via a switch launch to the shell encoder commands, and one of the outputs of the common path for converting and extracting signals is connected through a signal decoder with the charge to the additional input of the data processor and control of the operating modes of the system, which serves as the output of the signal data for the servo system drives of the antenna column, indicator, system synchronizer and communication unit with the launcher, and the control inputs of the signal compression block, start switch, encoder, decoder and common secondary path signal transformations and selections are connected to the clock outputs of the system synchronizer associated with the reference reference frequency generator, which is common to radio visors target and guided projectile.  2. The system according to claim 1, characterized in that the signal compaction unit is made of logical high-frequency elements OR, and the synchronization pulses of the signals arriving at their inputs are pulses of synchronization of radio targets and guided projectiles.

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