A measure of some time-frequency distributions concentration

被引：356

作者：

Stankovic, L ^{[1
]}

机构：

[1] Univ Montenegro, Elektrotehnicki Fak, YU-81000 Podgorica, Montenegro, Yugoslavia

来源：

SIGNAL PROCESSING | 2001年 / 81卷 / 03期

关键词：

The author is thankful to the reviewers for the comments; that helped to make the paper more complete. Author also thanks Prof. Johann F. Böhme; ARAL Research Bochum; and the Signal Theory Group at the Ruhr University Bochum; for the car engine data. A part of this research has been supported by the Alexander von Humboldt foundation; and the Volkswagen Stiftung; Federal Republic of Germany;

D O I：

10.1016/S0165-1684(00)00236-X

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：

A criterion that can provide a measure of time-frequency distribution concentration is proposed. In contrast to the norm-based concentration measures it does not need normalization in order to behave properly when cross-terms are present, and also it does not discriminate low concentrated components with respect to the highly concentrated ones within the same distribution. This measure has been used for the automatic window selection in the spectrogram as well as in finding the optimal distribution that can be produced in a transition from the spectrogram toward the pseudo Wigner distribution. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：621 / 631

页数：11

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