Research Article
A Rolling Bearing Fault Diagnosis-Optimized Scale-Space Representation for the Empirical Wavelet Transform
Figure 25
Results obtained by the EWTOSSR: (a) measured signal; (b) differences in the lengths of scale-space curves; (c–e) sub-band signals; (f) OSSP; (g) detected boundaries (green dash-dotted lines); (h–j) squared envelope spectra (red dashed lines: fBPFO and its harmonics; red dash-dotted lines: fBSF and its harmonics).
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