Axial Piston Pump Fault Diagnosis Method Based on Symmetrical Polar Coordinate Image and Fuzzy C-Means Clustering Algorithm

Table 3

Correlation coefficient of each component and original signal.

IMF	3	4	5	6	7	8
r	0.547	0.393	0.507	0.325	0.376	0.302
IMF	9	10	11	12	13	14
r	0.278	0.113	0.084	0.067	0.029	0.006