Title :
The application of matched filters to PD detection and localization
Author :
Veen, J. ; van der Wiellen, P.C.J.M.
Author_Institution :
Eindhoven Univ. of Technol., Netherlands
Abstract :
In practice, partial discharge (PD) signals are corrupted mainly by narrowband noise caused by radio communications. Matched filters are very well suited for PD detection in the presence of such noise, since they exploit spectral regions with high SNR to maximize the SNR of a measured PD signal. In addition to its noise suppressing capabilities, a matched filter provides a means to estimate accurately PD pulse magnitude and arrival time. Consequently, PD detection can benefit greatly from the application of matched filters. However, good knowledge of the signal waveform is required. In many cases, such information can be obtained by measurement or modeling of the PD pulse propagation.
Keywords :
adaptive filters; filtering theory; interference suppression; matched filters; noise; partial discharge measurement; PD detection; PD localization; PD pulse arrival time; PD pulse magnitude; PD pulse propagation; SNR; matched filter bank; narrowband noise; noise suppressing capabilities; partial discharge detection; signal to noise ratio; Digital signal processing; Filtering; Matched filters; Noise measurement; Noise reduction; Partial discharges; Pulse shaping methods; Radar detection; Signal detection; Signal to noise ratio;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2003.1238714
