DEVICE FOR DISTORTION OF RADAR IMAGE Russian patent published in 2016 - IPC G01S7/00 

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention relates to radio suppression of radar stations (RS). In distortion device radar image (RLIz) consisting of computing device and N-channel receiving and transmitting antenna arrays, wherein each of N channels includes analogue-to-digital converter, digital-to-analogue converter and amplifier, in each of N channels includes filter of high frequencies, coupler, delay line, mixer, low-pass filter and digital synthesizer, wherein n-th output, where n = 1, 2, …, N, receiving antenna array through high-frequency filter is connected to coupler, which first output is connected to second input of mixer, and second output is connected to input of delay line, which output is connected to first input of mixer with its output through low-pass filter, analogue-to-digital converter, computing device, digital synthesizer, digital-to-analogue converter and amplifier are connected to n-th input of transmitting antenna array.

EFFECT: reduced error of reproduction of linear frequency modulated chirp signals by taking into account Doppler frequency shift of received LFM signal caused by mutual displacement of RS carrier and (or) carrier of RLIz distortion device.

1 cl, 2 dwg