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Algorithm Considering Signal Correlation for Denoising of the Magnetic Flux Leakage of Wire Rope
Zhan Weixia 1 * #,Tan Jiwen 2,Wen Yan 2
1.College of Mechanical Engineering,Qingdao Technological Univercity, ShanDong QingDao 266033
2.College of Mechanical Engineering,Qingdao Technological Univercity,Qingdao 266033
*Correspondence author
#Submitted by
Subject:
Funding: Supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China （No.Grant No. 200804290001）
Opened online:19 January 2012
Accepted by: none
Citation: Zhan Weixia,Tan Jiwen,Wen Yan.Algorithm Considering Signal Correlation for Denoising of the Magnetic Flux Leakage of Wire Rope[OL]. [19 January 2012] http://en.paper.edu.cn/en_releasepaper/content/4461349
 
 
In order to suppress the noise in the magnetic flux leakage, the algorithm considering signal correlation, in which an optimal predictor and an optimal updater were chosen for every sample at all scales according to the magnitude of the correlation coefficient, was proposed. So the wavelets obtained through designing predictor and updater can perfectly fit the local features of signal. The actually processing effect of the simulation and the magnetic flux leakage signal of damage in wire rope show that the proposed method, compared with the classical wavelet, can effectively remove noise in original signal and principally retain the local features of the original signal.
Keywords:Lifting Wavelet; Magnetic Flux Leakage Signal; Autocorrelation Coefficient; Denoising
 
 
 

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