METHOD FOR GENERATING INTERFERENCE OF THE “ANTIPODE” TYPE Russian patent published in 2022 - IPC G01S7/38 

FIELD: electronics engineering.

SUBSTANCE: invention relates to the technique of electronic suppression and can be used in equipment for countering missiles with homing heads. In the claimed method for generating interference of the “antipode” type to radio-electronic means (REM), reception of probing signals of the REM active radar homing head (ARHH) is carried out on the protected object using two antenna systems spaced apart in space. The first system receives probing signals directly from the REM ARHH, and the second after their reflection from the underlying surface. According to the phase difference of the received signals, the angular direction of the REM and the mirror reflection of the REM from the underlying surface are determined, the range and angular coordinates of the REM are calculated. To emit an interference signal, an antenna system with a narrow directional pattern is used, which provides changing the angular position of the main lobe within such limits as to orient it in the direction of the mirror reflection of the REM from the underlying surface at all possible typical angles of approach of the REM. The angular position of the main lobe of the radiating antenna of the protected object is set in accordance with the current position of the REM, after which the received probing signal of the REM ARHH is re-emitted to the underlying surface, providing a mirror reflection of the interference from the underlying surface and its entry into the main lobe of the directional pattern of the REM ARHH, which creates a false target.

EFFECT: operation in a wide frequency range, there is no need for complex broadband phase calibration, a high probability of re-targeting, the targeted effect of the generated interference on the suppressed means along the main lobe of the antenna pattern.

1 cl, 7 dwg