Preprocessing of Coefficients for Reusable Continuous Wavelet Transform

被引：2

作者：

Khamukhin, Alexander A. ^{[1
]}

Khamukhin, Alexey A. ^{[1
]}

机构：

[1] Tomsk Polytech Univ, Tomsk 634050, Russia

来源：

HIGH TECHNOLOGY: RESEARCH AND APPLICATIONS | 2014年 / 1040卷

关键词：

CWT; continuous wavelet transform; wavelet coefficients; preprocessing; analysis; nonstationary signals;

D O I：

10.4028/www.scientific.net/AMR.1040.975

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The division into two stages of the Continuous Wavelet Transform (CWT) computing is proposed. This is expedient in circumstances when CWT is repeated many times, e.g., for online detection of nonstationary signal singularities. It is shown that the preprocessing of wavelet coefficients in the first stage can significantly reduce computing time required in the second stage. The comparative estimation of the runtime reduction in the second stage of CWT calculation is deduced.

引用

页码：975 / 979

页数：5

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