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RESEARCH PAPERS

Wavelet Analysis of Vibration: Part 2—Wavelet Maps

[+] Author and Article Information
D. E. Newland

Department of Engineering, University of Cambridge, Cambridge, CB2 1PZ UK

J. Vib. Acoust 116(4), 417-425 (Oct 01, 1994) (9 pages) doi:10.1115/1.2930444 History: Received May 01, 1993; Online June 17, 2008

Abstract

Wavelet maps provide a graphical picture of the frequency composition of a vibration signal. This paper, which is Part 2 of a pair, describes their construction and properties. In the case of harmonic wavelets, there are close similarities between wavelet maps and sonograms. A range of practical examples illustrate how the wavelet method may be applied to vibration analysis and some of its advantages.

Copyright © 1994 by The American Society of Mechanical Engineers
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