GPR for disaster mitigation and beyond

Abstract

After the 3.11 East Japan Great Earthquake and Tsunami, we are planning to move houses to higher places. In this case, we have to carry out archaeological survey before the development, and we expect great amount of demand will be created. We think the high accuracy GPR measurement methodology (3DGPR) which we are developing will have very high potential for this solution. 3DGPR is capable for survey on uneven ground surface, which was very difficult by conventional GPR. However, from our experience for humanitarian demining by ALIS, we know even sparser data acquisition can reconstruct good images. Higher density data acquisition is not very effective since it is time consuming, and recently Compact Sensing (CS) is also investigated for GPR. We found that GPR high resolution imaging by CS can be applied to buried pipe detection.