Performance On A Combined Representation For Time-Frequency Analysis
2017 2ND INTERNATIONAL CONFERENCE ON IMAGE, VISION AND COMPUTING (ICIVC 2017)(2017)
摘要
A new time-frequency representation based on the joint use of Wigner-Ville distribution (WVD) and local polynomial periodogram (LPP) is proposed in this paper, referred to as the WLP, for multi-component linear frequency modulated signals. By properly combining the representations of WVD and LPP, the WLP achieves their merits including high signal energy concentration and low cross-term interference. Compared with some useful time-frequency methods, the WLP has better performances on auto-term concentration and cross-term suppression.
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关键词
time-frequency,Wigner-Ville distribution,local polynomial periodogram,linear frequency modulated
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