Fault Characteristic Extraction by Fractional Lower-Order Bispectrum Methods

Figure 11

The fractional lower-order bispectrum estimations of the outer race normal signal. (a) FLODB estimation. (b) FLODB three-dimensional graph. (c) FLOIDB estimation. (d) FLOIDB three-dimensional graph. (e) FLOARB estimation. (f) FLOARB three-dimensional graph. (g) FLOARMAB estimation. (h) FLOARMAB three-dimensional graph.

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