METHOD FOR POLARIMETRIC SELECTION OF FALSE AERIAL TARGETS Russian patent published in 2019 - IPC G01S13/52 

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention relates to radar ranging and can be used for selection of false aerial targets based on polarization characteristics of reflected signals. Essence of invention consists in the fact that radar station emits, in the direction of each selected target, pulse sequences in turns with transceiving channels with two active phased antenna arrays with horizontal and vertical polarization of electromagnetic waves, receiving pulse-reflected sequences which are reflected from the targets, amplitudes of which are stored in the random-access memory, and forming, from the stored amplitudes, a general data array, storing amplitudes of signals reflected from the target on four polarizations (two collinear and two orthogonal) are carried out in a corresponding partial two-dimensional array of data, performing the pulse total signal amplitude difference estimation, calculating the average value of the summation-difference amplitudes of the polarization matrix, determining for the target the average value of the reflected polarization signal in the partial two-dimensional data array, comparing the value with a predetermined threshold value and if the threshold value is exceeded, the final decision is made on assigning the target to the class of real targets, otherwise the final decision is made on assigning the target to the class of false aerial targets.

EFFECT: high probability of correct selection of modern false aerial targets of MALD type owing to using a polarization feature which is not imitable with modern false targets of the MALD type.

1 cl, 5 dwg