Rolling Bearing Fault Diagnosis Based on CEEMD and Time Series Modeling

Table 2

Model parameter estimation results.

Signal	Model parameter
	𝜑1	𝜑2	𝜑3	𝜑4	𝜑5	𝜑6
𝑥1(𝑡)	4.7183	−9.1103	9.2034	−5.1408	1.5207	−0.1914
𝑥2(𝑡)	4.8894	−9.8269	10.3945	−6.1194	1.9153	−0.2531
𝑥3(𝑡)	4.8718	−9.9955	11.1616	−7.2529	2.6430	−0.4282