Terahertz Multiple Echoes Correction and Non-Destructive Testing Based on Improved Wavelet Multi-Scale Analysis

Terahertz Multiple Echoes Correction and Non-Destructive Testing Based on Improved Wavelet Multi-Scale Analysis

During terahertz (THz) non-destructive testing (NDT), multiple echoes from the sample interface reflection signals are mixed with the detection signals, resulting in signal distortion and affecting the accuracy of the THz NDT results. Combined with the frequency property of multiple echoes, an impro...

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Bibliographic Details
Main Authors: Gu, J. (Author), Li, L. (Author), Ren, J. (Author), Xiong, W. (Author), Xue, J. (Author), Zhang, D. (Author)
Format: Article
Language:English
Published: MDPI 2022
Subjects:
Adhesive layers
Adhesives
Bridge decks
Correction method
Detection signal
Frequency properties
Image enhancement
Multi scale analysis
multiple echoes
Multiple-echo
multi-scale analysis
Nondestructive examination
non-destructive testing
Signal information
Statistics
Tera Hertz
Time-of flight
time-of-flight
Wavelet analysis
Wavelet multiscales
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