Research Article

Intelligent Mechanical Fault Diagnosis Based on Multiwavelet Adaptive Threshold Denoising and MPSO

Figure 2

Multiscaling functions and multiwavelet functions of GHM. (a) Scaling function , (b) scaling function , (c) multiwavelet function , and (d) multiwavelet function .
142795.fig.002a
(a)
142795.fig.002b
(b)
142795.fig.002c
(c)
142795.fig.002d
(d)