EA007941B1 - Mobile radar station of circular scan in meter band - Google Patents

Abstract

The invention pertains to the domain of radar and can be used for detection, position measurement (range and azimuth), identification and tracking of a wide range of aerodynamic and ballistic targets.The principal technical effect of the invention in question is enhanced mobility of a metric waveband (VHF), all-around looking radar. Additional positive results of the invention include reduced weight and dimensions of the radar, less energy spent on the cooling of the transmitter, lower losses in the high-frequency transmission line, and the capability to measure the ‘third coordinate' (elevation) for high-altitude targets.The said results are achieved by the introduction in the known radar, which comprises a pulse shaper, main and backlobe-blanking (BLB) antennas, a receiver, primary and secondary data processors, and a display, management and control facility, of new features, namely a beamformer, secondary radar (IFF interrogator) equipment and antenna, a telecode communication channel antenna, an orientation and topographic referencing facility, a deployment and retraction gear, and an antenna and mast assembly, the latter built as a single metalwork and carrying the main antenna in the form of a phased array with transmitter/receiver modules, the BLB antenna, the IFF antenna, the deployment and retraction gear, the beamformer, and the telecode communication channel antenna. The proposed radar is accommodated on a single transport vehicle.

Description

The invention relates to radar and can be used for detection, measurement of coordinates (range and azimuth), identification and tracking of a wide class of aerodynamic and ballistic objects.

Known radar meter range of waves of similar purpose [1, 2]. The disadvantages of these radars are low tactical, technical and operational characteristics (accuracy, reliability, mobility, etc.), which is largely due to the use of outdated components and the use of analog methods of processing radar signals.

The closest in technical essence and purpose to the proposed is a two-coordinate radar of the circular review of the meter wave band [3], adopted for the prototype. Unlike other analogues, this radar uses modern element base and digital methods for processing radar signals.

The radar prototype, when used as intended, is placed on two vehicles and a separate site for an external compensation antenna. The first vehicle contains a probe pulse shaper, a solid-state mono-transmitter, a receiving device, primary and secondary processing devices, and a display, control and monitoring device, and a primary antenna on the second vehicle and (during transportation) a compensation antenna.

The main disadvantage of the prototype radar is its low mobility, since folding and deployment of the prototype radar requires considerable time for disassembling and assembling the main and compensation antennas, for cable connections between vehicles, and between the radar and ground radar interrogator (NRL) and others interfaced radar users. In addition, additional time is required for orientation and topographic binding of the main antenna and leveling of vehicles.

The disadvantages of the prototype include the large mass and dimensions, as well as significant energy costs for cooling a powerful solid-state mono transmitter and loss of high-frequency energy in the antenna-feeder radar path.

Radar mobility is crucial in ensuring its survivability, since its location is quickly determined by the enemy.

It is especially difficult to achieve the mobility of the radar meter range of waves with high energy potential, in which the weight and dimensions of antenna devices are large enough.

The main technical result of the present invention is to increase the mobility of the radar circular view of the meter wave range. Additional technical results are the reduction of its mass, dimensions and energy costs for cooling the transmitting device, reducing losses in the high-frequency path, as well as the possibility of measuring the third coordinate (elevation angle) of high-flying objects.

These technical results are achieved by the fact that a known radar device containing a probe pulse generator, a main and compensation antennas, a receiving device, primary and secondary processing devices, and a display, control and monitoring device, are additionally introduced a beamforming device (DOW), antenna and NRZ equipment, antenna of telecode channel, device for orientation and topographic location, device for expansion and folding, and antenna mast device made in the form of a single metal Skog frame on which the main antenna, which is a phased array antenna (FAR) with transceiver modules compensating antenna, NRZ, deployment and coagulation device, and DOW antenna telecode communication channel. In this case, the proposed radar stationed on a single vehicle.

FIG. 1 and 2 are the structural diagrams of the prototype and the proposed device, where indicated

- shaper probe pulses;

- solid-state transponder;

- main antenna;

- compensation antenna;

- receiving device;

- device primary processing;

- secondary treatment device;

- display device, control and monitoring;

- chart-forming device;

- antenna NRZ;

- equipment NRZ;

- Antenna telecode channel;

- device orientation and topographic location;

- device deployment and coagulation;

- Antenna mast device (AMU);

- 1 007941

- first vehicle;

- second vehicle.

On the structural diagrams for simplicity, the elements of time and angle synchronization are not shown.

The proposed radar consists of a shaper of probe pulses 1, the main antenna 3, a compensation antenna 4, a receiving device 5, a primary processing device 6, a secondary processing device 7, a display, control and monitoring device 8, a DOW 9, an NRZ 10 antenna, an NRZ 11 equipment, antennas of telecode communication channel 12, orientation and topographic location devices 13, deployment and collapse devices 14 and AMU 15. One vehicle 16 is used to accommodate the listed radar components.

The output of the driver of the probe pulses 1 is connected to the first input of DOW 9, the output-input of which is connected to the input-output of the main antenna 3, and the output to the second input of the receiving device 5, the first input of which is connected to the output of the compensation antenna 4, and the output - with the first input of the primary processing device 6, the output of which is connected to the second input of the DOW 9, the second input - with the output of the orientation device and topography 13, and the input-output - with the output outputs of the display, control and monitoring device 8 and the secondary processing device 7, the second input-output of which is connected to the input-output of the antenna of the NHR 10 through the equipment of the NRZ 11, and the output to the input of the antenna of the telecode communication channel 12, the output of which is the output of the radar station.

The main antenna 3, made in the form of a headlight with transceiver modules, compensation antenna 4, antenna NRZ 10, the deployment and folding device 14, mechanically connected with these antennas and with the vehicle 16, as well as the DOW 9 and the antenna of the telecode channel 12 are located on the same metal frame antenna mast device 15.

The primary processing device 6, the secondary processing device 7 and the display, control and monitoring device 8 are made on the basis of specialized electronic computers with signal processors.

The proposed radar works as follows.

The original linear-frequency-modulated (chirp) sounding pulses, amplified by power to the required level, from the driver shunting pulses 1 are sent through the DOW 9 to the transmitting part of the transmitting-receive modules of the HEADLAMP of the main antenna 3, which radiates them into space. DOW 9 provides the required amplitude-phase distribution (PRA) probe pulses for the formation of a given radiation pattern of the main antenna (DND). The values of the PRA are calculated in the computer of the primary processing device 6 in accordance with the radar survey program in the vertical plane and the carrier frequency of the probe pulses.

The radar signals received and amplified by the receiving parts of the transmitting-transmitting modules of the HEADLIGHTS of the main antenna 3 arrive at the pre-school facility 9, at the output of which radar signals of the main and two compensation receiving channels are formed. The signals of the compensation channels are used in the preprocessing device 6 to compensate for the active interference received by the side lobes of the main antenna channel.

To compensate for the active interference received by the rear lobe of the BOTTOM of the main receiving channel, signals from the third compensation channel are used, received by the compensation antenna 4 located on the back side of the main antenna 3.

The signals of the main and three compensation reception channels through the receiving device 5, where they are amplified and transformed, are digitally fed to the first input of the primary processing device 6, to the second input of which the signals of the orientation and topographic interface 13 are received. The initial processing results in automatic detection and measurement range, azimuth and (ranging from 5 to 45 °) elevation angle, automatic compensation of active noise interference, control of DND PAR through DOW 9 and others.

Information about the coordinates of the objects from the primary processing device 6 enters the secondary processing device 7, which carries out the formation of object paths, recognizes their classes, controls the operation of the NRS 10, 11, identifies the state identification signals with the routes, and connects the information via the antenna of the telecode channel 12 with consumers radar information.

The device orientation and topographic location 13 provides automatic orientation of the main antenna 3 relative to the direction to the North and the determination of the geographical coordinates of the radar using signals from satellite navigation systems GLONASS (Russia) and OR8 (USA) to recalculate the coordinates of the detected objects relative to the radar location on the ground.

The coordinates of the objects from the output of the primary processing device 6, the tracks and identification marks from the output of the secondary processing device 7 are displayed on the screen of the device 8, which represents the operator’s workplace, from whose console the radar equipment is controlled and its technical condition is monitored.

The device deployment and coagulation 14 is an automated hydraulic system with mechanical elements, providing folding (unfolding) of the main antenna 3, compensation antenna 4, antenna NRZ 10, lowering (lifting) and laying AMU 15 on

- 007941 vehicle platform 16 and its leveling when deploying radar.

Thus, the placement of the proposed radar on one vehicle 16, the location of the main 3 and compensatory 4 antennas, as well as the entered antennas of the NRZ 10 and the telecode communication channel 12, DOW 9 and the coagulation and deployment device 14 on AMU 15, the implementation of the main antenna 3 as HEADLIGHTS with transceiver modules, the introduction of equipment NRZ 11 and devices for orientation and topography 13, interconnected by the method described above, can significantly reduce the time spent on rolling up and deploying the radar, that is, increase e mobility, as well as significantly reduce weight and size and to eliminate the energy consumption for cooling the low-power transceiver modules PAR, and also to reduce losses in the high frequency paths PAR.

In addition, due to the use of HEADLIGHTS with transceiver modules, controlled by the primary processing device 6 through DOW 9, it becomes possible to measure the third coordinate of the detected high-flying objects by electronically scanning the DNA in a vertical plane.

Information sources

1. Weapons of Russia 2004, Moscow, Military Parade, 2004, P-18 radar, p. 675.

2. Weapons of Russia 2004, Moscow, Military Parade, 2004, RLS 1L13, p. 673.

3. Mobile ground two-coordinate radar of the circular review of the meter wave range. Application No. 2003121688 dated July 14, 2003. Decision to grant a patent for an invention dated January 26, 2005.

Claims (1)

CLAIM Mobile radar of the circular review of the meter wave band, containing a probe pulse generator, a receiving device, primary and secondary processing devices, a display, control and monitoring device, a main antenna and a compensation antenna connected in series through the receiving device to the first input of the primary processing device, input-output which is connected to the inputs-outputs of the secondary processing device and the display, control and monitoring device, characterized in that it additionally includes The chart-forming device, the antenna and the equipment of the ground-based radar interrogator, the antenna of the telecode channel, the device for orientation and topography, the device for unfolding and folding and the antenna mast device, made in the form of a single metal frame, on which the main antenna, which is a phased antenna array with transceiver modules, compensation antenna, ground radar interrogator antenna, beamforming device, antenna t An interlaced communication channel and a deployment and coagulation device, in which the radar stationed on one vehicle, the deployment and coagulation device is mechanically connected to the main and compensation antennas, the ground radar interrogator antenna and the vehicle, the output of the probe pulse generator is connected to the first input of the pattern-forming device, the output-input of which is connected to the input output of the main antenna, the output to the second input of the receiving device, and the second input - the output of the primary processing device, the second input of which is connected to the output of the orientation device and topographic location, the antenna's input-output of the radar interrogator is connected to the second input-output of the secondary processing device, the output of which is connected to the antenna input of the telecode channel, the output of which Radar station