PASSIVE INTERFERENCE REJECTION FILTER Russian patent published in 2018 - IPC H04B1/10 

FIELD: radar and radio navigation.

SUBSTANCE: invention relates to a radar technique and is intended to isolate signals of moving targets against a background of passive interference during group rearrangement of the carrier frequency of probing pulses. Passive interference rejection filter comprises a first, second and third delay blocks, a weighting unit, a first and second complex multipliers, weight block, complex adder, sync generator, complex conjugation unit, switching unit, accuracy unit, switching unit and two-channel switch connected to each other so as to coherently process initial samples, wherein the switching unit comprises a counter, a decoder, coincidence blocks and an adder.

EFFECT: increased efficiency of signal extraction of moving targets.

1 cl, 11 dwg