3D Physical Model Test and Signal Processing of Ground Penetrating Radar

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 RADAN7 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 signal 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.