Wheelset-Bearing Fault Detection Using Adaptive Convolution Sparse Representation

Figure 2

IRSs extracted using CSR for different parameters . (a) Original sound, kurtosis value = 40.3023. (b) λ = 1, kurtosis value = 69.9564. (c) λ = 2, kurtosis value = 98.9707. (d) λ = 3, kurtosis value = 135.1575. (e) λ = 5, kurtosis value = 183.7083.

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