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The empirical mode decom-position and the Hilbert spectrum for nonlinear and non-stationarytime series analysis .2 Huang N E,Shen Z,Long S R,et al. Proceeding of Royal Society London . 1998
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The empirical mode decom-position and the Hilbert spectrum for nonlinear and non-stationarytime series analysis .2 Huang N E,Shen Z,Long S R,et al. Proceeding of Royal Society London . 1998