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2.5. Variance Contribution Rate (VCR)

BG Bin Guo
ZC Zhongsheng Chen
JG Jinyun Guo
CC Chuanfa Chen
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The variance contribution rate (VCR) illustrates the effects of the frequency of the fluctuation and amplitude at different scales on the overall characteristics of the original signal [24,36]. The variance contribution rate of the ith IMF component (VCRi) can be calculated via the following formula:

where var(ci(t)) and var(rn(t)) represent the variances of the ith IMF component and the final residue, respectively.

Copyright and License information:  ©2016 by the authors; licensee MDPI, Basel, Switzerland.
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