Research Article

Rolling Element Bearing Fault Diagnosis Using Integrated Nonlocal Means Denoising with Modified Morphology Filter Operators

Figure 8

Simulated signal: (a) FFT spectrum of the simulated signal after NLM-EMD for low level Gaussian white noise and (b) FFT spectrum of the simulated signal after NLM-EMD for high level Gaussian white noise.
(a)
(b)