An Enhanced Version of Second-Order Synchrosqueezing Transform Combined with Time-Frequency Image Texture Features to Detect Faults in Bearings

Figure 11

Distribution of 24 statistical feature parameters (SFPs) obtained by (a) STFT, (b) SST, (c) OSST, and (d) VSST.

(a)

(b)

(c)

(d)