Analysis of Vehicle Platform Vibration Based on Empirical Mode Decomposition

Figure 12

Hilbert marginal spectrum of IMFs by different methods. (a) EMD. (b) EEMD with WGN in 0 dBW. (c) EEMD with WGN in −10 dBW. (d) EEMD with WGN in −30 dBW. (e) EEMD with WGN in −50 dBW. (f) NSEEMD proposed in this study.

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