Application of Feature Fusion Using Coaxial Vibration Signal for Diagnosis of Rolling Element Bearings

Table 3

Box plot outlier quantity of the Rényi entropy.

Signal location	1	2	3	4	5	6	7	8	Total
	N	I-D	B-D	O6-D	I-F	B-F	O3-F	O12-F
Without denoise
Drive end	0	2	0	1	1	0	3	4	11
Fan end	0	2	0	1	2	1	3	2	11
Autocorrelation denoise
Drive end	0	3	1	2	0	0	0	0	6
Fan end	2	1	2	1	0	1	0	0	7