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抑制Winger-Ville分布交叉项的新方法
引用本文:赵培洪,平殿发,邓兵.抑制Winger-Ville分布交叉项的新方法[J].计算机应用,2010,30(8):2218-2220.
作者姓名:赵培洪  平殿发  邓兵
作者单位:1. 烟台海军航空工程学院2.
基金项目:国家自然科学基金资助项目,"泰山学者"建设工程专项资助 
摘    要:提出了一种可行的检测Wigner-Ville分布交叉项并将其抑制掉的新方法。Cohen类时频分布之一的Margenau-Hill分布同Wigner-Ville分布一样,拥有众多的优良特性,但它和后者交叉项在时频面上的分布却有天壤之别。于是,根据两种分布交叉项在时频面的特点将交叉项检测出来,进而设计二维遮蔽滤波器将交叉项移除。最后的仿真表明了该方法的可行性。

关 键 词:Wigner-Ville分布    Margenau-Hill分布    时频分布    交叉项
收稿时间:2010-01-18
修稿时间:2010-03-06

New method to suppress cross-terms of Wigner-Ville distribution
ZHAO Pei-hong,PING Dian-fa,DENG Bing.New method to suppress cross-terms of Wigner-Ville distribution[J].journal of Computer Applications,2010,30(8):2218-2220.
Authors:ZHAO Pei-hong  PING Dian-fa  DENG Bing
Abstract:A new method was proposed to suppress the cross-terms of Wigner-Ville distribution. First,the cross-terms were detected between the Wigner-Ville and the Margenau-Hill distributions based on the geometry difference of cross-terms representation,then a mask filter was designed to eliminate them. Finally,the results of simulation indicate that this technique is feasible.
Keywords:Wigner-Ville Distribution (WVD)                                                                                                                        Margenau-Hill Distribution (MHD)                                                                                                                        time-frequency distribution                                                                                                                        cross-term
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