A Novel Denoising Algorithm of Electromagnetic Ultrasonic Detection Signal Based on Improved EEMD Method
Joint Authors
Gong, Wenkang
Liu, Qi
Du, Wenhao
Xu, Weichen
Wang, Gang
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-08
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Information Technology and Computer Science
Abstract EN
In this paper, we propose a new denoising algorithm for electromagnetic ultrasonic signals based on the improved EEMD method, which can adaptively adjust for added noise and average times in different noisy environments, so that the effect of the residual difference of white noise on the results can be eliminated as far as possible.
First, the way to add white noise in the EEMD method is processed, and then the permutation entropy algorithm is used to identify the nature of the components obtained during the decomposition.
Then the wavelet transform modulus maximum denoising method is used to deal with the IMF components of the high-frequency part obtained before.
Finally, the processed IMF results and residual difference are summed up.
The results show that after processing, the noise component in the signal is less and the original information is more reserved, which prevents the signal distortion to a great extent and provides more effective data for subsequent processing.
In the experiment, the crack defect data collected by the electromagnetic ultrasonic experiment system were processed by the improved EEMD method.
Compared with the traditional EEMD method, it can retain the information of crack location more accurately, which proves the effectiveness of the proposed method.
American Psychological Association (APA)
Gong, Wenkang& Liu, Qi& Du, Wenhao& Xu, Weichen& Wang, Gang. 2018. A Novel Denoising Algorithm of Electromagnetic Ultrasonic Detection Signal Based on Improved EEMD Method. Journal of Electrical and Computer Engineering،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1184487
Modern Language Association (MLA)
Gong, Wenkang…[et al.]. A Novel Denoising Algorithm of Electromagnetic Ultrasonic Detection Signal Based on Improved EEMD Method. Journal of Electrical and Computer Engineering No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1184487
American Medical Association (AMA)
Gong, Wenkang& Liu, Qi& Du, Wenhao& Xu, Weichen& Wang, Gang. A Novel Denoising Algorithm of Electromagnetic Ultrasonic Detection Signal Based on Improved EEMD Method. Journal of Electrical and Computer Engineering. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1184487
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1184487