Rolling Bearing Fault Diagnosis Based on CEEMD and Time Series Modeling

Table 5

Model parameter estimation results.

Signal	Model parameter
	𝜑1	𝜑2	𝜑3	𝜑4	𝜑5	𝜑6
(a)	3.1280	−4.7797	4.2245	−2.1489	0.4241	0.0356
(b)	0.2084	−1.3585	0.5142	−0.6356	0.3471	−0.0422
(c)	0.1335	−1.6472	0.3941	−0.8473	0.2142	−0.1011
(d)	−0.1172	−1.2159	0.1178	−0.1283	0.1467	0.2533