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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Modeling of Ground-Penetrating Radar for Detecting Buried Objects in Dispersive Soils
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Modeling of Ground-Penetrating Radar for Detecting Buried Objects in Dispersive Soils

机译：探地雷达在分散土壤中探测埋藏物体的建模

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摘要

The detection of buried targets with ground-penetrating radars (GPRs) has been an issue of considerable attention during the last decades. In this paper, an efficient three-dimensional (3-D) time-domain numerical method is proposed for the simulation of GPR on dispersive soils. The soil is considered as an M-th order Debye medium with additional static conductivity and an unsplit-field perfectly matched layer (PML) is also presented to terminate such media. The radar unit is modeled with two transmitters and one receiver in order to eliminate undesired signals. The impact of radar frequency, soil parameters and object depth upon the ability to detect buried targets is investigated through several finite-difference time-domain (FDTD) simulations. The detection of multiple dielectric and conducting buried objects in stratified and inhomogeneous soils can be feasible through the tracing of the received energy of B-scan measurements in perpendicular linear paths.
机译：在过去的几十年中，使用探地雷达（GPR）对掩埋目标的探测一直是一个备受关注的问题。本文提出了一种有效的三维（3-D）时域数值方法，用于在分散土壤上模拟GPR。土壤被认为是具有额外静电传导性的M级德拜介质，并且还提出了非分裂场完美匹配层（PML）来终止这种介质。雷达单元具有两个发射机和一个接收机的模型，以消除不希望的信号。通过几种有限时域（FDTD）模拟，研究了雷达频率，土壤参数和物体深度对探测掩埋目标能力的影响。通过在垂直线性路径中跟踪B扫描测量的接收能量，可以在分层和非均质土壤中检测多个电介质和导电掩埋物体。

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