Research Article

A Signal Decomposition Method for Ultrasonic Guided Wave Generated from Debonding Combining Smoothed Pseudo Wigner-Ville Distribution and Vold–Kalman Filter Order Tracking

Figure 13

The GWs collected in the experiment: (a) no defect, (b) 20 mm, and (c) 30 mm.
(a)
(b)
(c)