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Ray-based simulation method of ground-penetrating radar signals

Abstract

探地雷达(简称GPR)是一种高效的地下介质无损检测方法,它通过发射高频电磁脉冲波,利用地下介质电性参数的差异,根据回波的振幅、波形和频率等运动学和动力学特征来分析和推断介质结构和物性特征,具有探测速度快、非破坏性、分辨率高、可进行数据实时成像处理等优点,在水文、工程、环境等领域已取得广泛的应用。而探地雷达的数值模拟是整个雷达成像方法的关键。对雷达图像作数值模拟,有助于加深对雷达反射剖面特征的认识,为实测雷达剖面的解释提供依据,这也是探地雷达技术中的一个难点。本文针对探地雷达的数值模拟问题进行了详细研究,在射线理论的基础上研究了用于探地雷达信号合成的射线追踪数值计算方法,编制了相应的计算程序,进...Ground-Penetrating Radar (GPR) is an high efficient unimpaired technique for exploration under the earth. In GPR, high frequency electromagnetic waves are transmitted from earth surface and the structures and physical characteristics of underground medium can be concluded by the received reflect electromagnetic waves. Ground penetrating radar has been already widely used in the fields of hydrology...学位:理学硕士院系专业:信息科学与技术学院电子工程系_无线电物理学号:20033000

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