Title :
Comparing denoising performance of DWT,WPT, SWT and DT-CWT for Partial Discharge signals
Author :
Mortazavi, S.H. ; Shahrtash, S.M.
Author_Institution :
Center of Excellence for Autom. & Oper. of Power Syst., Iran Univ. of Sci. & Technol. (IUST), Tehran
Abstract :
Denoising is one of the major part in on-line partial discharge(PD) measurement system. In the recent years wavelet transform has been widely used in PD denoising area and its effectiveness discussed in many papers. In this paper, different wavelet based transforms such as DWT, WPT, SWT and DT-CWT and their performance in PD signal denoising with definition proper criteria have been investigated.
Keywords :
discrete wavelet transforms; partial discharge measurement; PD denoising area; discrete wavelet transform; dual-tree complex wavelet transform; on-line partial discharge measurement system; stationary wavelet transform; wavelet packet transform; Continuous wavelet transforms; Discrete wavelet transforms; Filter bank; Frequency; Noise level; Noise reduction; Partial discharge measurement; Partial discharges; Sampling methods; Wavelet transforms;
Conference_Titel :
Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International
Conference_Location :
Padova
Print_ISBN :
978-1-4244-3294-3
Electronic_ISBN :
978-88-89884-09-6
DOI :
10.1109/UPEC.2008.4651625
