Research Article

Fractional Fourier Transform for Ultrasonic Chirplet Signal Decomposition

Figure 14

(a) Measured ultrasonic backscattered signal (blue) superimposed with the reconstructed signal consisting of 8 dominant chirplets (red). (b) Measured ultrasonic backscattered signal (blue) superimposed with the reconstructed signal consisting of 23 chirplets (red).
480473.fig.0014a
(a)
480473.fig.0014b
(b)