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《Journal of Jilin University(Information Science Edition)》 2009-02
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Amelioration Algorithm to Suppress the Cross-Term Interference of WVD

GAO Xian-jun,CHEN Chao,ZHANG Jie,ZNANG Zhuo(Department of Aviation Electronical Engineering,Aviation University of Air Force,Changchun 130022,China)  
The WVD(Wigner-Ville Distribution) is an important method of time-frequency analysis,but the cross-term interference in WVD has a bad influence.Aiming at the characters of cross-term interference.An amelioration algorithm—united algorithm basted on STFT(Short-Time Fpiroer Tramsfpr) and WVD(STFT-WVD) was proposed to solving the problem.Between the Spectrogram and WVD of signals,united algorithm makes a cross correlation to achieve an ideal effect.By analyzing and simulating,it is proved that STFT-WVD suppresses the cross-term interference in WVD effectively,and keeps the excellent time-frequency resolution as WVD.So STFT-WVD is an effective amelioration algorithm of WVD.
【CateGory Index】: TN911.7
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