Wavelet Transform Analysis of Open Channel Wake Flows
Publication: Journal of Engineering Mechanics
Volume 127, Issue 1
Abstract
Wavelet transform analysis offers a new approach to signal processing through its ability to decompose signals in both time and frequency. As such, it is more suited to nonstationary and intermittent signals than traditional Fourier analysis. The first part of this paper provides an introduction to the theory and signal processing properties of both continuous and discrete wavelet transform analysis. An account is then given of the application of wavelet transform analysis to a variety of experimental open channel wake flows. Feature location is undertaken using a continuous wavelet transform, and both turbulent statistical analysis and thresholding of the turbulent signal components are undertaken using a discrete wavelet transform.
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Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 127 • Issue 1 • January 2001
Pages: 58 - 70
History
Received: Jun 30, 1999
Published online: Jan 1, 2001
Published in print: Jan 2001
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