Acoustics Source Identification of Diesel Engines Based on Variational Mode Decomposition, Fast Independent Component Analysis, and Hilbert Transformation

<div>The mixed signal X1 and X2 in time domain and spectrum domain. (a) Mixed signal X1. (b) X1 power spectrum. (c) Mixed signal X2. (d) X2 power spectrum.</div>

Shock and Vibration

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Figure 10

Figure 10: Acoustics Source Identification of Diesel Engines Based on Variational Mode Decomposition, Fast Independent Component Analysis, and Hilbert Transformation 

Figure 10 | Acoustics Source Identification of Diesel Engines Based on Variational Mode Decomposition, Fast Independent Component Analysis, and Hilbert Transformation 