Evaluation on Filter Performance of Variational Mode Decomposition and Its Application in Separating Closely Spaced Modes

<div>The averaged Fourier spectra of IMFs for EMD realizations, in the case of three typical Hurst exponents: (a) <i>H</i> = 0.2, (b) <i>H</i> = 0.5, and (c) <i>H</i> = 0.8.</div>

Shock and Vibration

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Figure 2

Figure 2: Evaluation on Filter Performance of Variational Mode Decomposition and Its Application in Separating Closely Spaced Modes 