MULTI-CHANNEL CORRELATION-FILTER RECEIVING ARRANGEMENT WITH SELECTION OF MOVING TARGETS Russian patent published in 2007 - IPC G01S13/526 

FIELD: the invention refers to radio receiving technique of processing of quasi-continuous pulse-Doppler signals and may be used in radar systems using sounding signals with comb-shaped spectrum.

SUBSTANCE: the multi-channel correlation-filter receiving arrangement with selection of moving targets has in-series connected a compensator of spectral lines of interference and multi-channel arrangement of correlation-filter processing of received signals of pulse-Doppler radar. The compensator of spectral lines of interference has in the direct channel in-series switched a multiplier-mixer, an algebraic adder, a wide-band filter, a modulator and an amplifier and in the compensating channel - in-series switched an analog-digital converter, a digital filter of low frequencies and digital-analog converter. The first input of the analog-digital converter is connected with the input of the multiplier-mixer which is the input of the arrangement, the output of the digital-analog converter is connected with the second input of the algebraic adder, controlling inputs of the digital-analog converter and digital filter of low frequencies are combined and switched to the source of digitization pulses. The second input of the multiplier-mixer is connected through a phase inverter with a heterodyne of the radar and to the second input of the modulator is switched the output of the heterodyne of the weighting function.

EFFECT: simplification of the arrangement, increasing stability of its work and functional possibilities with more simple and reliable means.

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