RU149611U1 - DEVICE FOR ATTACHING ANGULAR MOVEMENT OF AN ANTENNA OF A RADAR STATION TO A UNIT TIME SCALE - Google Patents

Abstract

A device for linking the angular movement of the antenna of the radar station to a single time scale, comprising a sensor unit with an input for connecting the antenna shaft, a rotation simulator, an adder, a code sensor, an automatic navigation system (ASN), a calculator and a switch, the second adder input being connected to the switch output , the first and second inputs of which are connected respectively with the first output of the calculator and the output of the code sensor, characterized in that it stores the azimuth code and time code storage registers, formed an output code generator, a time code generator, a frequency divider and a clock, the device inputs being the first input of the azimuth code storage register and the first input of the time code storage register, while the second and third inputs of the azimuth code storage register are connected respectively to the output of the sensor unit and the output of the rotation simulator, and the output of the azimuth code storage register through the adder is connected to the first input of the output code generator, the second input of which is connected to the time code storage register the output of the time code generator, the first, second and third inputs of which are connected respectively to the second output of the calculator, the ASN output and the output of the frequency divider, while the input and the input-output of the calculator are connected respectively to the output of the output code generator and the ASN input-output, and the divider input frequency is connected to the output of the clock generator, and the output of the output code generator is the output of the device, in addition, part of the device, namely, rotation simulator, adder, switch, code storage registers

Description

The utility model relates to the field of radar and radar technology and can be used in radar stations (radar), multi-position radar (MPLS) and radar systems (RLC) for various purposes to convert the angular displacement of the antenna into an azimuth code with reference to a single time scale.

As you know, in MPRLS and RLC, all processing of radar information is divided into three stages. The primary processing consists in detecting the signal of the target and measuring its coordinates with the corresponding quality or errors. Secondary processing involves determining the parameters of the trajectory of each target by the signals of one or a number of MPRLS positions (one or more radar radar modules), including the operations of identifying target marks. During tertiary processing, the parameters of the trajectories of the targets obtained by various receivers of the MPRL or RLC with the identification of the trajectories are combined [1].

Target marks received from different sources are usually reduced to a single countdown time at the input of the secondary and / or tertiary processing device. A single reference time is necessary in order to determine the position of the processed marks as of any one point in time. This operation increases the accuracy of identifying marks coming from different radars, and facilitates the task of identifying them [1].

A known system for synchronizing clocks on a radio channel [2], consisting of a group of leading watches, a group of remote watches, a central clock, an automatic navigation system and a communication line. The disadvantages of this system are the low reliability - in case of failure of the leading clock, the time on the remote clock will be unsynchronized, as well as the lack of an algorithm for synchronizing the leading clock with a single time scale. Therefore, this device cannot be used to solve the problem of binding the azimuth code to the time code.

A device for converting the angular movement of the radar antenna [3], consisting of a sensor unit, a strobe forming unit, an antenna rotation simulator, an azimuthal binary code signal generating unit, an indication unit, a code sensor and an adder.

The disadvantage of this device is the low accuracy, since this device does not bind the azimuth code to the time scale due to the lack of a source of time scale.

The closest analogue (prototype) in structure to the proposed utility model is a device for converting the angular displacement of the radar antenna [4] shown in figure 1 and containing a sensor unit 1, a strobe forming unit 2, a rotation simulator 3, an angular information converter 4, an adder 5 , display unit 6, code sensor 7, automatic navigation system (ASN) 8, calculator 9 and switch 10.

When the antenna shaft rotates, the sensor unit 1 converts the angular displacement of the shaft into discrete information, which is a binary sequential n - bit code, where the number "n" is the number of bits, which is determined by the accuracy of the Converter. These signals are fed to the first input of the angle information transducer 4, the second input of which from the output of the rotation simulator 3 receives the same signals necessary for the converter 4 to operate in the simulated azimuthal situation. Depending on the selected mode (work-simulation), the angle information converter 4 commutes the binary codes and then synchronizes them with a setting pulse. From the output of converter 4, this code is fed to the first input of the n-bit adder 5, to the second input of which, through switch 10, a binary correction code is generated either by the code sensor 7 (only when the radar is manually oriented at the prepared position), where be used “n” toggle switches, or ASN 8 and calculator 9 (with automatic radar orientation in both prepared and unprepared positions). The output signals of the adder 5 are fed to the block forming gates 2, generating azimuthal gates of the radar, and to the input of the display unit 6.

Although there is an ASN in this device, which can be used as a standard for a single time scale, but just like [3], the device does not bind the azimuth code to a single time scale, which reduces its accuracy. In addition, the disadvantages of the prototype are low reliability, high cost, large dimensions and weight due to the outdated element base of the prototype.

Achievable technical result of the proposed utility model is to increase the accuracy of identification of target marks when processing radar information while improving technical and economic characteristics such as reliability, cost, as well as weight and dimensions.

The specified technical result is achieved in that in a known device containing a sensor unit with an input for connecting the antenna shaft, a rotation simulator, an adder, a code sensor, an automatic navigation system (ASN), a computer and a switch, the second adder input being connected to the switch output, the first and the second inputs of which are connected, respectively, with the first output of the calculator and the output of the code sensor, registers for storing the azimuth code and the time code, the shaper of the output code, the shaper of the time code, are entered Frequency amplifier and clock. In this case, the device inputs are the first input of the azimuth code storage register and the first input of the time code storage register. The second and third inputs of the azimuth code storage register are connected, respectively, with the output of the sensor unit and the output of the rotation simulator. The output of the azimuth code storage register through the adder is connected to the first input of the output code shaper, the second input of which is connected to the output of the time code shaper through the time code storage register, the first, second, and third inputs of which are connected, respectively, to the second output of the calculator, ASN output, and output frequency divider. The input and input-output of the calculator are connected, respectively, with the output of the shaper of the output code and the input-output of the ASN. The input of the frequency divider is connected to the output of the clock generator. The output of the output code generator is the output of the device. In addition, part of the device, namely, a rotation simulator, an adder, a switch, azimuth code and time code storage registers, an output code generator, a time code generator and a frequency divider, is implemented on the basis of a programmable device.

The figure 2 presents a structural diagram of the proposed device, where indicated:

1 - sensor block;

3 - rotation simulator;

5 - adder;

7 - code sensor;

8 - automatic navigation system (ASN);

9 - calculator;

10 - switch;

11 - register storage azimuth code;

12 - shaper output code;

13 - register storage time code;

14 - time code generator;

15 - frequency divider;

16 - clock generator;

17 is a programmable device.

A device for linking the angular movement of the radar antenna to a single time scale contains a sensor unit 1, rotation simulator 3, adder 5, code 7 sensor, automatic navigation system (ASN) 8, calculator 9, switch 10, azimuth code 11 and time code 13 storage registers , an output code shaper 12, a time code shaper 14, a frequency divider 15, and a clock 16. In this case, the axis of the sensor unit 1 is mechanically connected to the antenna shaft. The device inputs are the first input of the azimuth code storage register 11 and the first input of the time code storage register 13. The second and third inputs of the azimuth code storage register 11 are connected, respectively, with the output of the sensor unit 1 and the output of the rotation simulator 3. The output of the azimuth code storage register 11 is connected with the first input of the adder 5, the second input of which is connected to the output of the switch 10, the first and second inputs of which are connected, respectively, with the first output of the calculator 9 and the output of the code sensor 7. The output of the adder 5 is connected to the first input the house of the shaper of the output code 12, the second input of which is connected to the output of the storage register of the time code 13, the second input of which is connected to the output of the shaper of the time code 14, the first, second, and third inputs of which are connected, respectively, to the second output of the calculator 9, the output of the ASN 8 and the output of the clock generator 16 through the frequency divider 15. The input and input-output of the calculator 9 are connected, respectively, with the output of the shaper of the output code 12 and the input-output of the ASN 8. The output of the shaper of the output code 12 is the output of the device. In addition, part of the device, namely, rotation simulator 3, adder 5, switch 10, azimuth code 11 and time code 13 storage registers, output code shaper 12, time code shaper 14 and frequency divider 15, are implemented on the basis of programmable device 17.

As the sensor unit 1, a photoelectric angle converter of the PF-DE-14-50 type can be used [5].

As ASN 8 can be used goniometric satellite navigation equipment - multifunctional radio navigation complex (MRK) type MRK-31 [6].

As the calculator 9 can be used small panel station MPS-12 [7].

The time code generator 14 is a timer.

As the clock generator 16 can be used a generator of the type GK81-P [8].

As the programmable device 17 can be used, for example, a microcontroller or programmable logic integrated circuit, for example, a chip type 1886 BE2U [9].

The device operates as follows.

At the same time, an external synchronization signal “Record Label” (MOH) is supplied to the first inputs of the storage registers for the azimuth code 11 and time code 13.

Depending on the mode of operation of the device (rotation or simulation of rotation of the antenna), the value of the angle of rotation of the antenna supplied from the output of the sensor unit 1 to the second input of the azimuth code storage register 11 or the value of the simulated angle of rotation of the antenna supplied from the output of the rotation simulator 3 is recorded in register 11 to the third input of this register.

From the output of the azimuth code storage register 11, the antenna angle code is supplied to the first input of the adder 5, where it is added to the azimuthal correction code supplied from the output of the switch 10 to the second input of the adder 5.

The azimuthal correction, depending on the selected input mode (manual or automatic), comes either from the output of the code sensor 7 to the second input of switch 10, or from the first output of calculator 9 to the first input of switch 10. Then it is switched by switch 10 to the output.

From the output of the adder 5, the azimuth code is supplied to the first input of the output code generator 12, the second input of which receives the time code from the output of the time code storage register 13. The output code generator 12 combines the azimuth code and the time code into one codogram. The output of the output code generator 12 is the output of the device.

During the orientation operation, the ASN 8, based on the signals of global satellite navigation systems, determines the true position of the antenna relative to the geographic North, as described in [4].

The input-output of the ASN 8 is connected to the input-output of the calculator 9. Through this connection, the calculator 9 controls the operation of the ASN 8 and receives from it data on the true position of the antenna relative to the geographic North, as well as data on the current time relative to the selected standard time scale with guaranteed accuracy about 0.5 s.

From the output of ASN 8, the “Second mark” signal (SM) is fed to the second input of the time code shaper 14. The SM signal is used to precisely synchronize the time scale of the time code shaper 14 with the standard time scale. This signal is a sequence of pulses with a period of 1 second, the front of which is synchronized with high accuracy with the selected reference time scale.

From the output of the clock generator 16, the clock pulses are fed to the input of the frequency divider 15, the output of which pulses with a repetition period equal to the price of the least significant bit of the generated time code are fed to the third input of the time code generator 14, which generates a time code at the output and writes it current value in the time code storage register 13.

At the first input of the time code generator 14, the initial value of the time code from the second output of the calculator 9 is supplied.

Thus, the azimuth code is linked to the time scale.

To monitor and reinitialize the synchronization procedure (in case of time running out), the output code of the device is connected to the input of the calculator 9.

Thus, an introduction to a device containing a sensor unit, a rotation simulator, an adder, a code sensor, an ASN, a calculator and a switch, azimuth code and time code storage registers, an output code shaper, a time code shaper, a frequency divider and a clock with the above connections , as well as the use of current time information and the SM signal from the ASN, it allows to increase the accuracy of identification of target marks when processing radar information, and the use of modern element base in the form of iruemogo device made it possible to increase the reliability, reduce the cost, weight and dimensions of the device.

Information sources:

1. www.mipt.ru;

2. "Radio clock synchronization system", RF patent No. 21115946, application No. 95118223 of 10.26.1995, publ. 07/20/1998;

3. "Device for converting the angular movement of the radar antenna", USSR author's certificate No. 1840541, application No. 3041778 from 05/10/1982, publ. 05/27/2007;

4. "Device for converting the angular movement of the radar antenna", RF patent No. 44879, application No. 2004133727 from 11/18/2004, publ. 03/27/2005;

5. http://www.avangard-gas.ru/images/stories/agas/pf-de-16-50.pdf;

6.Http: //krtz.rf/nav_mrc-32.html;

7. www.avromcs / index.php? Id = mps12;

8. TU 6329-019-07614320-99;

9.http: //milandr.ru/uploads/Products/product_22/spec_1886BE2(BE 1) .pdf.

Claims (1)

A device for linking the angular movement of the antenna of the radar station to a single time scale, comprising a sensor unit with an input for connecting the antenna shaft, a rotation simulator, an adder, a code sensor, an automatic navigation system (ASN), a calculator and a switch, the second adder input being connected to the switch output , the first and second inputs of which are connected respectively with the first output of the calculator and the output of the code sensor, characterized in that it stores the azimuth code and time code storage registers, formed an output code generator, a time code generator, a frequency divider and a clock, the device inputs being the first input of the azimuth code storage register and the first input of the time code storage register, while the second and third inputs of the azimuth code storage register are connected respectively to the output of the sensor unit and the output of the rotation simulator, and the output of the azimuth code storage register through the adder is connected to the first input of the output code generator, the second input of which is connected to the time code storage register the output of the time code generator, the first, second and third inputs of which are connected respectively to the second output of the calculator, the ASN output and the output of the frequency divider, while the input and the input-output of the calculator are connected respectively to the output of the output code generator and the ASN input-output, and the divider input frequency is connected to the output of the clock generator, and the output of the output code generator is the output of the device, in addition, part of the device, namely, rotation simulator, adder, switch, code storage registers mutations and time code generator output code, the time code generator and the frequency divider is implemented based on a programmable device.

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