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07458 Time-Frequency Signal De-noising of Coulostatically-Induced Transients Based on Empirical Mode Decomposition

Picture for 07458 Time-Frequency Signal De-noising of Coulostatically-Induced Transients Based on Empirical Mode
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Product Number: 51300-07458-SG
ISBN: 07458 2007 CP
Author: Yong-Tao Zhao and Xing-Peng Guo
Publication Date: 2007
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A method of de-noising based on empirical mode decomposition (EMD) for coulostatically-induced transients (CITs) is presented. This filtering was illustrated with CIT and its associated impedance spectra, and comparisons have been made with wavelet de-noising and FIR method. The results reported here demonstrate that EMD de-noising is applicable to coulostatic measurements data in both the time and frequency domains, where wavelet filtering can also be successful. Moreover, in cases where the non-linear CITs need de-noise, EMD can eliminate noisy data from CIT. The proposed method shows superior performance over the traditional methods and is an alternative de-noising method for the CITs analysis.
A method of de-noising based on empirical mode decomposition (EMD) for coulostatically-induced transients (CITs) is presented. This filtering was illustrated with CIT and its associated impedance spectra, and comparisons have been made with wavelet de-noising and FIR method. The results reported here demonstrate that EMD de-noising is applicable to coulostatic measurements data in both the time and frequency domains, where wavelet filtering can also be successful. Moreover, in cases where the non-linear CITs need de-noise, EMD can eliminate noisy data from CIT. The proposed method shows superior performance over the traditional methods and is an alternative de-noising method for the CITs analysis.
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