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

Table 4

Multikernel parameters for coaxial signals model.

No.	1	2	3	4	5
Kernel	Gaussian	Gaussian	Gaussian	Gaussian	Gaussian
Bandwidth	0.01	0.1	1	10	100
Variable	DE + FE	DE + FE	DE + FE	DE + FE	DE + FE
Weight	0.3430	0.3724	0.1903	0	0
No.	6	7	8	9	10
Kernel	Gaussian	Gaussian	Gaussian	Gaussian	Gaussian
Bandwidth	0.01	0.1	1	10	100
Variable	DE	DE	DE	DE	DE
Weight	0	0.0780	0	0	0
No.	11	12	13	14	15
Kernel	Gaussian	Gaussian	Gaussian	Gaussian	Gaussian
Bandwidth	0.01	0.1	1	10	100
Variable	FE	FE	FE	FE	FE
Weight	0.0079	0	0	0	0
No.	16	17	18	19	20
Kernel	Polynomial	Polynomial	Polynomial	Polynomial	Polynomial
Order	1	2	3	1	2
Variable	DE + FE	DE + FE	DE + FE	DE	DE
Weight	0	0	0.0084	0	0
No.	21	22	23	24
Kernel	Polynomial	Polynomial	Polynomial	Polynomial
Oder	3	1	2	3
Variable	DE	FE	FE	FE
Weight	0	0	0	0