水泥混凝土结构中探地雷达分辨率的数值模拟分析

摘要

结合探地雷达在水泥混凝土结构中的应用，采用数值模拟的方法研究了探地雷达三种常用高频天线的分辨率问题，通过对数值模拟结果的分析，得出如下结论：探地雷达的分辨率只与天线的中心频率有关，与探测目标的类型无关，对于1．2GHz、900MHz和500MHz天线，其水平和垂直分辨率依次为4cm、5cm和11cm。%Combined with application of GPR in cement concrete structure, the resolution issue for three com- mon used high frequency antenna of GPR is studied with numerical simulation method. Through analyzing the nu- merical simulation result, it is concluded that： the resolution of GPR is only related to centre frequency of antenna and not related to the type of detected target. For 1.2GHz, 900MHz and 500MHz antenna, the horizontal and ver- tical resolution is respectively 4cm, 5cm and 11cm.