探地雷达在地下暗渠探测中的应用

摘要

将探地雷达技术引入地下暗渠探测领域，采用时域有限差分法（FDTD法）模拟探地雷达探测地下暗渠，并根据模拟结果雷达剖面图中目标物的图像特征指导实际工程应用，成功地探测到地下暗渠的空间位置。%With the development of urban roads , a lot of open channelbeing buried in the ground become under-drain.Because of the lack of data , do not know its distribution.In this paper , the ground penetrating radar technique is introduced into the underdrain detection field , using the finite difference time domain method (FDTD ) simulate the GPR ground penetrating radar to detect the underdrain ,and according to the simulation results radar profile of target in image feature guide practical engineering application ,successfully detect the spatial position of the underdrain.