Shock and Vibration / 2016 / Article / Fig 11

Research Article

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

Figure 11

The results obtained by morphological filtering: (a) envelope extraction of the signal shown in Figure 9(a) by using the closing operator; (b) the optimal length of SE; (c) the local maximum locations of the signal shown in Figure 11(a); and (d) the revised local maximum locations of the signal shown in Figure 11(c) by using the iterative local maximum selection.
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