(a)
(b)
(c)
(d)
(e)
(f)
Figure 11: Analysis results for the bearing signal with a defective outer race: (a) original signal; (b) envelope signal with a filtering band at 3000–3750 Hz; (c) optimal MSTSR output signal (optimal parameters: , , , and ); (d) optimal WSSR output signal (optimal parameters: , , , and ); (e) optimal WSGSR output signal (optimal parameters: , , , , , and ); and (f) optimal SVVR output signal (optimal parameters: , , , , , and  rad/s).