期刊
EQUIPMENT MANUFACTURING TECHNOLOGY
卷 422, 期 -, 页码 347-352出版社
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/AMR.422.347
关键词
intrinsic time-scale decomposition(ITD); de-noising; empirical mode decomposition (EMD); wavelet threshold de-noising(WTD)
A new de-noising algorithm based on Intrinsic Time-scale Decomposition (ITD) is proposed after analyzing the statistical characteristics of additional Gaussian white noise decomposed by ITD. Compared with the Wavelet Threshold De-noising(WTD) and de-noising algorithms based on empirical mode decomposition (EMD), the numerical simulation results show that this algorithm has comparable performance with the de-noising based on EMD and the WTD, and it is no need for spline interpolation, iterative sifting and selection of the wavelet base. It is a new adaptive de-noising algorithm.
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