Research on Fast Synthetic Aperture Imaging Method for Ground Penetrating Radar in Subsurface Object Detection

摘要

This paper analyzed received data of shallow subsurface ground penetrating radar(GPR), and proposed to decide useful information distribution area in whole received data by the characteristic of variance and A-scan energy of the data. A new fast synthetic aperture imaging(SAI)mcthod is achieved by only using those useful GPR data, the results of experiment data processing show this method is very effective, the effect of the fast synthetic aperture imaging method corresponds with general synthetic aperture imaging method, and the computational load is reduced greatly compared with general synthetic aperture imaging method.