Feature Extraction Method for Weak Faults Based on Time-Delayed Feedback Mixed Potential Stochastic Resonance

Figure 3

The change trends of SNR versus D: (a) m = 1 and  = 1.2; (b) m = 1 and K = 0.7; (c) K = 0.7 and  = 1.2.

(a)

(b)

(c)