A Heavy-Haul Railway Corrugation Diagnosis Method Based on WPD-ASTFT and SVM

Table 3

The columnwise means of the Renyi entropy and the difference of the means for the normal section and corrugation section.

	Subsignal 1	Subsignal 2	Subsignal 3	Subsignal 4	Subsignal 5	Subsignal 6
Mean for normal section	15.48	16.71	18.31	18.10	17.37	19.02
Mean for corrugation section	13.61	16.70	18.82	18.35	17.47	19.11
Difference of the means	1.87	0.01	0.51	0.25	0.10	0.08