Instantaneous frequency estimation using the S-transform

被引：34

作者：

Sejdic, Ervin ^{[1
]}

Stankovic, LJubisa ^{[2
]}

Dakovic, Milos ^{[2
]}

Jiang, Jin ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Elect & Comp Engn, London, ON N6A 5B9, Canada

[2] Univ Montenegro, Dept Elect Engn, Podgorica 81000, Montenegro

来源：

IEEE SIGNAL PROCESSING LETTERS | 2008年 / 15卷

关键词：

instantaneous frequency estimation S-transform; time-frequency;

D O I：

10.1109/LSP.2008.917014

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Instantaneous frequency (IF) is a fundamental concept that can be found in many disciplines such as communications, speech, and music processing. In this letter, analysis of an IF estimator, based on a time-frequency technique known as S-transform, is performed. The performance analysis is carried out in a white Gaussian noise environment, and expressions for the bias and the variance of the estimator are determined. The results show that the bias and the variance are signal dependent. This has been statistically confirmed through numerical simulations of several signal classes.

引用

页码：309 / 312

页数：4

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