Radar Emitter Signal Recognition Based on WRFCCF

In order to identify the advanced radar emitter signals(RES),an automatic recognition approach of signals was proposed.This approach is based on the cascade-feature of the wavelet ridge-frequency(WRF).The new wavelet atom and the detection strategy are used to extract the WRF feature of the RES,and the wavelet ridge-frequency cascade-feature(WRFCCF) is extracted to identify the RES.Simulation results show that the proposed approach can achieve a correct rate of above 95% even when the SNR(signal-to-noise ratio) is as low as 5 dB.Compared with the traditional wavelet and the existing approaches,the proposed approach has a fine recognition effect.