Genetic Algorithm Assisted Wavelet Noise Reduction Scheme for Chaotic Signals

Xiao Hong Han () and Xiao Ming Chang ()
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Xiao Hong Han: Taiyuan University of Technology
Xiao Ming Chang: Taiyuan University of Technology

Journal of Optimization Theory and Applications, 2011, vol. 151, issue 3, No 13, 646-653

Abstract: Abstract We present a Genetic Algorithm-based wavelet denoising method which incorporates a Genetic Algorithm within a wavelet framework for threshold optimization. The new method not only intelligently adapts itself to different types of noise without any prior knowledge of the noise, but also balances the preservation of dynamics against the degree of noise reduction by optimizing the Signal-to-Noise Ratio and the Liu’s error factor. The presented method performs better than the state-of-the-art wavelet-based denoising methods when applied to chaotic signals.

Keywords: Threshold optimization; Wavelet; Genetic Algorithm; Chaotic signal; Denoising (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1007/s10957-011-9875-6

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