Shock and Vibration / 2016 / Article / Fig 7

Research Article

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

Figure 7

The results obtained by morphological analysis: (a) envelope extraction of the signal shown in Figure 5(a) by using the closing operator; (b) the optimal length of the SE; (c) the local maximum locations of the signal shown in Figure 7(a); and (d) the revised local maximum locations of the signal shown in Figure 7(c) by using the iterative local maximum selection.
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