论文成果

发布时间：

2025-04-30

论文名称：

A guided wave dispersion compensation method based oncompressed sensing

发表刊物：

Mechanical Systems and Signal Processing

摘要：

The ultrasonic guided wave has emerged as a promising tool for structural health monitoring (SHM) and nondestructive testing (NDT) due to their capability to propagate over long distances with minimal loss and sensitivity to both surface and subsurface defects. The dispersion effect degrades the temporal and spatial resolution of guided waves. A novel ultrasonic guided wave processing method for both single mode and multi-mode guided waves dispersion compensation is proposed in this work based on compressed sensing, in which a dispersion signal dictionary is built by utilizing the dispersion curves of the guided wave modes in order to sparsely decompose the recorded dispersive guided waves. Dispersion-compensated guided waves are obtained by utilizing a non-dispersion signal
dictionary and the results of sparse decomposition. Numerical simulations and experiments are implemented to verify the effectiveness of the developed method for both single mode and multi-mode guided waves.

合写作者：

Cai-bin Xu, Zhi-bo Yang, Xue-feng Chen, Shao-hua Tian, Yong Xie

卷号：

103

页面范围：

89-104

是否译文：

否

发表时间：

2018-06-14