METHOD FOR HIGH-PRECISION DIRECTION FINDING OF DIRECTOR OF MULTIPLE RESPONSE-PULSE INTERFERENCE Russian patent published in 2021 - IPC G01S7/38 G01S3/06 

FIELD: physics.

SUBSTANCE: invention relates to radar ranging and can be used in pulsed radar stations of various types (survey, multifunctional, and so forth), equipped with active phased antenna arrays, to solve the task of selecting targets against a background of multiple response-pulse interference acting on the main lobe of the beam pattern of the active phased antenna array. Said technical result is achieved by the fact that in the method of high-accuracy direction finding of the producer of multiple response-pulse interference affecting the radar station with an active phased antenna array, which consists in separate vector-forming vector summation of received signals from outputs of antenna array elements in adjoining vertical antenna sub-arrays, evaluation of correlation matrix of summed signals, calculating an inverse correlation matrix, calculating control vectors, calculating a direction-finding pattern and searching for local maximums thereof, as well as diagram-forming vector summation of signals from outputs of all elements of the full-size antenna array, processing of total signal in filter matched with probing signal, its threshold processing and estimation of time delay of signals of primary detection, before evaluation of the correlation matrix of summed signals from outputs of vertical antenna subarrays, their processing is performed in a filter matched with the probing signal and time extraction by multiplication with time strobes, generation of which is carried out using obtained estimates of time delay of primary detection signals.

EFFECT: technical result is implementation of possibility of high-accuracy direction finding of multiple response-pulse noise generators.

1 cl, 8 dwg