一种抑制时频分布交叉项的新方法

被引：6

作者：

王勇

姜义成

机构：

[1] 哈尔滨工业大学电子工程技术研究所

来源：

电子学报 | 2008年 / 36(S1)卷 / S1期

关键词：

交叉项; 相位校正函数; 洁净技术; 时频聚集性;

D O I：

暂无

中图分类号：

TN911.72 [数字信号处理];

学科分类号：

0711 ; 080401 ; 080402 ;

摘要：

提出一种抑制时频分布交叉项的新方法,该方法在Wigner-Ville分布(WVD)的基础上,引入一相位校正函数,可抑制信号的非线性导致的自交叉项影响.对于多分量信号,文中采用洁净(CLEAN)技术对每个信号分量进行带通滤波,抑制了信号分量间的互交叉项影响.该方法在抑制时频分布交叉项的同时,保持着较高的时频聚集性,计算机仿真实验验证了本文算法的有效性.

引用

页码：161 / 165

页数：5

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