Research on Estimation SPWVD Parameter of Frequency-Hopping Signal
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Frequency-Hopping signal is a typical nonstationary signal and must adopt nonstationary signal processing methods.WVD is a common time-frequency distribution and be often used to analyze Frequency-Hopping signal,but it has serious cross-term problem.SPWVD is the improvement of WVD,and it can reduce the influence of WVD cross-terms and estimate the parameter of Frequency-Hopping signal.The FH signal model is introduced,and the discrete processing is recited,and the WVD and SPWVD analysis process of FH signals are simulated in computer,all which show that WVD and SPWVD both can analysis Frequency-Hopping signal,but SPWVD reduces the influence of WVD cross-terms,so this method is more effective and feasible.