Time Localised Band Filtering Using Modified S-Transform

被引：19

作者：

George, Nithin V. ^{[1
]}

Sahu, Sitanshu Sekhar ^{[1
]}

Mansinha, L. ^{[2
]}

Tiampo, K. F. ^{[2
]}

Panda, G. ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Elect & Commun Engn, Rourkela 769008, India

[2] Univ Western Ontario, Dept Earth Sci, London, ON N6A 3K7, Canada

来源：

PROCEEDINGS OF THE 2009 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING SYSTEMS | 2009年

基金：

加拿大自然科学与工程研究理事会;

关键词：

FREQUENCY; SIGNALS;

D O I：

10.1109/ICSPS.2009.63

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 noisy time series, with both signal and noise varying in frequency and in time, presents special challenges for improving the signal to noise ratio. A modified S-transform time-frequency representation is used to filter a synthetic time series in a two step filtering process. The filter method appears robust within a wide range of background noise levels.

引用

页码：42 / +

页数：2

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