Table 4.

Classification data and the computing time of different methods.

Method	Recognition Rate (%)				Average (%)	Computing Time (s)
	Ship–①	Ship–②	Ship–③	Ship–④
VMD-PE	94	100	99.33	100	98.33	5927.7852
CEEMDAN-ED-EE	96.89	88.89	77.78	77.78	85.33	45,202.5006
CEEMDAN-W-PE	97.11	85.33	77.56	77.78	84.44	45,494.1924
SlEn&PE	100	99.78	100	100	99.94	48.6153