METHOD FOR CAPTURE OF ANTI-AIRCRAFT GUIDED MISSILES FOR TRACKING USING RADAR STATION FOR TRACKING TARGETS AND MISSILES Russian patent published in 2023 - IPC G01S13/02 F41G7/22 

FIELD: radar technology.

SUBSTANCE: claimed invention can be used in radar stations for tracking targets and missiles (STTM) as part of anti-aircraft missile systems, one of the functions of which is tracking and measuring the coordinates of anti-aircraft guided missiles (AGM). In the claimed method, simultaneously with the launch of the AGM, the predicted initial coordinates of the AGM on the flight path are given to the STTM, the beam of the PAA of the missile input antenna (MIA), which has a wide radiation pattern, is set in the predicted direction, using the PAA of the main antenna (MA), which has a narrow radiation pattern, request packets are transmitted to the AGM. The response signal emitted by the radar transponder on board the AGM is received by the missile input antenna, the coordinates of the AGM are determined. At the same time, a PAA of the MAis used with the possibility of expanding the beam, which is turned on when the AGM is launched. The expanded beam of the MA is set in the direction predicted by the coordinates measured by the MIA, the interrogation packet is sent to the AGM, the response signal of the radar transponder is received by the expanded beam of the MA, and the refined coordinates of the AGM are determined. The expanded beam of the MA is set in the predicted direction, the AGM are tracked by the extended beam of the main antenna. After capture for tracking by the extended MA beam, the AM narrow beam is turned on and the AGM continue to be accompanied by the MA narrow beam. Tracking input of the AGM by the antenna continues after being captured for tracking by the main antenna, the ratio of the levels of the response signals received by MA and MIA is determined. When this ratio exceeds a predetermined threshold, determined from the ratio of the gains of the main antenna and the MIA, as well as the level of the side lobes of the MA, a decision is made to locate the AGM in the main lobe of the MA radiation pattern and continue to track the AGM with the main antenna. Otherwise, the MA beam is set according to the AGM coordinates received from the MIA until a decision is made on location of the AGM in the main lobe of the MA radiation pattern.

EFFECT: avoidance of capturing AGM for tracking by the side lobes of the main antenna, as well as reduction in size and cost of the missile input antenna used to implement the method

1 cl, 1 dwg, 1 tbl