Application of SN-EMD in Mode Feature Extraction of Ship Radiated Noise

Figure 4

Decomposition of artificial signal by (a) EMD, (b) EEMD, (c) CEEMD, (d) CEEMDAN, (e) improved CEEMDAN, and (f) SN-EMD.

(a)

(b)

(c)

(d)

(e)

(f)