1. Illustrative Examples, Two Different Machine Data

2. Illustrative Examples Machine Vibration Moderate Strong Knock region

3. White Noise, Background Noise

4. Background Noise Removal

5. Wavelet Decomposition Multiresolution

6. Wavelet Coefficients and Denoising

7. Residual( Noise Component)

8. Denoising, Another Example

10. Two Stage Denoising of Signals

11. Signal component at WP No.38: a) Severe Faulty Condition, b), Mild Fault (b), Fault-free Condition (c).

12. Denoised Signal, WP Node

13. Illustration of Sparsity of Wavelet Coeffs

14. Variability of Cyclic Signals

15. Illustration of Variablity, Spectral Variability, 16 cycles

16. Spectrum of the vibration signal and its denoised version

17. Variability in Cyclic Runs Variation of vibrations in three consecutive cycles OriginalDenoised

19. Analysis in Coefficient Domain