Research Article
Rolling Element Bearing Fault Diagnosis Using Integrated Nonlocal Means Denoising with Modified Morphology Filter Operators
Figure 4
Waveform of simulated signal: (a) impulsive signal; (b) harmonic signal; (c) sum of impulsive signal and harmonic signal (); (d) composite signal with low level white noise; (e) composite signal with high level white noise.
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