Research Based on WVD-HT for LFM Detection
Xueli Sheng · Dianzi xuebao · 2004
A method based on Wigner-Ville Distribution-Hough Transform (WVD-HT) time-frequency analysis,which focuses on detecting LFM impulse interfered by Guassian white noise or reverberation,is presented.The necessary theoretical analysis is given.The simulation results indicated that WVD-HT method can cancel the interference and defect the signal even if SNR is decreased to -20dB.The effectiveness of this method is much better than copy-correlator.