Abstract
Ultrasonic non-destructive testing signal can be decomposed into a set of chirplet signals, which makes the chirplet transform a fitting ultrasonic signal analysis and processing method. Moreover, compared to wavelet transform, short-time Fourier transform and Gabor transform, chirplet transform is a comprehensive signal approximation method, nevertheless, the former methods gained more popularity in the ultrasonic signal processing research. In this paper, the principles of the chirplet transform are explained with a simplified presentation and the studies that used the transform in ultrasonic non-destructive testing and in structural health monitoring are reviewed to expose the existing applications and motivate the research in the potential ones.
| Original language | English |
|---|---|
| Pages (from-to) | 3778–3781 |
| Journal | Engineering, Technology and Applied Science Research (ETASR) |
| Volume | 9 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Feb 2019 |
| MoE publication type | A1 Journal article-refereed |
Funding
This study was supported by the Ministry of Knowledge Economy (MKE) through the Regional Innovation Centre program.
Keywords
- NDT
- chirplet tranform
- guided wave
- structural health monitoring
- ultrasonic