地质雷达探测效果影响因素研究

Research on Influencing Factors of GPR's Detection Effectiveness

简要介绍了地质雷达的探测深度和分辨率与天线中心频率fc的直接关系,在选择中心频率时要同时兼顾探测深度和分辨率。文中介绍了地质雷达采集参数的选取方法,给出了相应的计算公式以及参数调整的影响和经验数据。此外,说明了在混凝土结构探测过程中,还要注意探测时机的选取。

This paper briefly introduces the direct relation of penetrating depth with distinguishing ratio of GPR and central frequency of antenna. When choosing the central frequency, both the penetrating depth and resolution should be considered. The paper discusses how to choose the GPR parameters and their calculation formulae, and gives the influence of parameters on detection effectiveness and the experience data. In the probing of concrete structures, the selection of penetrating time should be noticed also.