Sparse Signal Representations of Bearing Fault Signals for Exhibiting Bearing Fault Features

<div>The signals: (a) the real outer race fault signal; (b) the frequency spectrum of the original outer race fault signal; (c) the frequency spectrum of the optimal complex Morlet wavelet; and (d) the frequency spectrum of the filtered signal.</div>

Shock and Vibration

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Figure 8

Figure 8: Sparse Signal Representations of Bearing Fault Signals for Exhibiting Bearing Fault Features 