An MCM-Enhanced Compressive Sensing for Weak Fault Feature Extraction of Rolling Element Bearings under Variable Speeds

Table 7

Parameters setting and optimization results of PSO.

Parameters	α	K
Range of values	[0, 2000]	[1, 10]
Maximum evolution	50
Maximum population	10
Local search speed	1
Global search speed	1.2
Optimization results	109	5