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[1]
The statistical performance of some instantaneous frequency estimators .2 Lovell B C,Williamson R C. IEEE Transaction on Signal Processing , July . 1992
Statistical Performance of the Wigner-Ville Distribution and the Cross Wigner-Ville Distribution
被引：4
作者：
陈光化
曹家麟
机构：
[1] School of Electromechanical Engineering and Automation
[2] China
[3] Shanghai University
[4] Shanghai 200072
关键词：
Wigner-Ville distribution;
cross Wigner-Ville distribution;
instantaneous frequency;
variance;
D O I：
暂无
中图分类号：
TN911.7 [信号处理];
学科分类号：
0711 ;
080401 ;
080402 ;
摘要：
This paper analyzes statistical performances of the Wigner-Ville distribution (WVD) and the cross Wigner-Ville distribution (XWVD). Theoretical studies show that XWVD of the analyzed signal can be estimated from XWVD of the noise-contaminated signal . The estimation is unbiased, and the variance is equal to that of noise. In this case, WVD cannot be estimated from WVD of the noise-contaminated signal . Therefore higher SNR is required when using WVD.
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页码：379 / 383
页数：5
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