Change Point Detection for Piecewise Envelope Current Signal Based on Wavelet Transform
Joint Authors
Wang, Haiyan
Zhou, Feng
Jiang, Chunyang
Qin, Ling
Zhang, Huaiqing
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-03
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Information Technology and Computer Science
Abstract EN
One of the key issues of the accurate parameters analysis for the piecewise envelope current signal is to position the change point precisely.
Discrete wavelet transform (DWT) modulus maxima method can detect change point, but the detection window of DWT will cause suspicious change point.
Besides, the amount of calculated data is very large in actual process of envelope current signal.
Therefore, in this paper, the envelope is used instead of the original sampling data for DWT so as to reduce the calculation amount.
What is more, combined with the sliding dislocation window method, the change point can be located accurately and the pseudo-change point can be eliminated.
The simulation results as well as the electric locomotive current and forging machine current examples show that it is feasible to detect the change point precisely through the proposed method, which provides possibilities for real-time online monitoring of change point.
American Psychological Association (APA)
Wang, Haiyan& Zhou, Feng& Jiang, Chunyang& Qin, Ling& Zhang, Huaiqing. 2018. Change Point Detection for Piecewise Envelope Current Signal Based on Wavelet Transform. Journal of Electrical and Computer Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1184570
Modern Language Association (MLA)
Wang, Haiyan…[et al.]. Change Point Detection for Piecewise Envelope Current Signal Based on Wavelet Transform. Journal of Electrical and Computer Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1184570
American Medical Association (AMA)
Wang, Haiyan& Zhou, Feng& Jiang, Chunyang& Qin, Ling& Zhang, Huaiqing. Change Point Detection for Piecewise Envelope Current Signal Based on Wavelet Transform. Journal of Electrical and Computer Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1184570
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1184570