An algorithm for the continuous Morlet wavelet transform

被引：110

作者：

B ssow, Richard ^{[1
]}

机构：

[1] Berlin Inst Technol, Inst Fluid Mech & Engn Acoust, D-10587 Berlin, Germany

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2007年 / 21卷 / 08期

关键词：

morlet power spectrum; time domain; impulse response; dispersion;

D O I：

10.1016/j.ymssp.2007.06.001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This article consists of a brief discussion of the energy density over time or frequency that is obtained with the wavelet transform. Also an efficient algorithm is suggested to calculate the continuous transform with the Morlet wavelet. The energy values of the wavelet transform are compared with the power spectrum of the Fourier transform. Useful definitions for power spectra are given. The focus of the work is on simple measures to evaluate the transform with the Morlet wavelet in an efficient way. The use of the transform and the defined values is shown in some examples. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2970 / 2979

页数：10

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