西华大学学报（自然科学版）2018，Vol.37Issue(2)：7-12,6.DOI:10.3969/j.issn.1673-159X.2018.02.002
探地雷达三维物理模型试验及信号处理
3D Physical Model Test and Signal Processing of Ground Penetrating Radar
摘要
Abstract
In order to study the signal processing of GPR detection data by GPR,the 3D tunneling cavity tunneling was simulated by three-dimensional physical model test,followed by GPR to detect the model. Finally, the software RADAN7 and MATLAB software were used to edit the wavelet soft threshold filtering Program to detect the data for comparison processing. The results show that the denoising by wavelet transform is relatively complete by using RAD-AN7 and wavelet analysis thresholding,and the signal preservation is relatively complete and the image is clearer. The characteristics of the target cavity are significantly strengthened. Wavelet transform can be very good performance of sig-nal non-stationary,such as edges, spikes and breakpoints. Therefore, the wavelet analysis of threshold filtering for ground-penetrating radar signal filtering effect is more effective,and can provide an effective basis for engineering.关键词
空洞病害/隧道衬砌/小波变换/探地雷达/阈值滤波Key words
hollow disease/tunnel lining/wavelet transform/ground penetrating radar/threshold filtering分类
信息技术与安全科学引用本文复制引用
舒志乐,吴海宽,余聪,李亨,吴林龙,蒋洪..探地雷达三维物理模型试验及信号处理[J].西华大学学报（自然科学版）,2018,37(2):7-12,6.基金项目
国家自然科学基金创新群体基金(50621403) （50621403）
教育部春晖计划项目(14206503) （14206503）
西华大学重点基金项目(z1120635) （z1120635）
西华大学研究生创新基金(ycjj2016080) （ycjj2016080）
桥梁无损检测与工程计算四川省高校重点实验室开放课题基金(2016QYJ05). （2016QYJ05）
