Wheelset-Bearing Fault Detection Using Adaptive Convolution Sparse Representation

Figure 26

Learned impulse responses and extracted IRSs: (a) the first type of impulse response (IR1); (b) IRS1 of IR1; (c) the second type of impulse response IR2; (d) IRS2 of IR2.

(a)

(b)

(c)

(d)