FIELD: radio engineering.
SUBSTANCE: proposed method for detecting radar signals based on matched filtration and amplification of signal and filtration of its envelope and on comparison of filtered-off wave with threshold set depending on noise level within time interval incorporating probable signal reception space includes destruction of useful-signal correlation structure in wave received whereupon wave is processed in same manner as in main processing, noise level is measured, and detection threshold is set in compliance with level obtained. Device implementing this method has matched filter, envelope detector, subtractor, threshold unit, phase shifter, modulator, as well as additional matched filter and envelope detector.
EFFECT: enhanced immunity to transient broadband noise.
1 cl, 4 dwg
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