Deceptive multiple false targets jamming recognition for linear frequency modulation radars

This study considers the problem of deceptive multiple false targets jamming recognition. Due to the different modulation patterns, there is a great difference in fast-time frequency spectrum or slow-time Doppler spectrum between the different types of jammings. The proposed algorithm first extracts the received sample matrix, then computes left and right similarity (LR-similarity) by fast-time-slicing or slow-time-slicing process and finally recognises the samples according to template matching classifier. Experimental results demonstrate that the accuracy recognition probability of the proposed method is >95%, when jamming-to-signal ratio is above 3 dB.