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Detection of PD utilising digital signal processing methods part 3: open-loop noise reduction

Shim, I. and Soraghan, J.J. and Siew, W.H. (2001) Detection of PD utilising digital signal processing methods part 3: open-loop noise reduction. IEEE Electrical Insulation Magazine, 17 (1). pp. 6-13. ISSN 0883-7554

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Abstract

The paper shows that open-loop noise reduction techniques can be effective in separating partial discharge (PD) signals from noise. Wavelet-based denoising through the use of thresholding of wavelet coefficients provides near optimal noise reduction for many classes of signals including PD signals in noise. The effectiveness of wavelet transform-based noise reduction depends on selection of an appropriate wavelet basis function as well as on careful selection of threshold function and levels.

Item type: Article
ID code: 7018
Keywords: digital signal processing, open-loop noise reduction, partial discharge detection, wavelet transform, signal processing, Electrical engineering. Electronics Nuclear engineering, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 16 Oct 2008
    Last modified: 04 Sep 2014 14:37
    URI: http://strathprints.strath.ac.uk/id/eprint/7018

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