埋在两个粗糙表面之间的物体电磁散射的全波模拟:在探地雷达中的应用

Q3 Engineering

Progress In Electromagnetics Research B Pub Date : 2021-07-09 DOI:10.36227/techrxiv.14925324

Marc E. Songolo, N. Pinel, C. Bourlier

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引用次数: 1

摘要

本文提出了一种有效的数值方法来计算埋在两个随机粗糙表面之间的物体散射场的频率和时间响应。这种方法被称为广义桩(GPILE)方法，因为它扩展了只考虑两个表面或埋在一个表面下的物体的PILE方法。GPILE方法采用简单的矩阵形式严格求解麦克斯韦方程组。得到的结果有一个简单的物理解释，并允许我们研究埋在两个粗糙表面之间的物体的影响。我们区分了上表面的一次回波、下表面的多次回波和物体产生的回波。应用GPILE方法对探地雷达(GPR)信号在最低点进行模拟。由此产生的时间响应有助于用户检测隐藏在两个随机粗糙表面之间的物体的存在。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Full Wave Modeling of Electromagnetic Scattering by an Object buried between two Rough Surfaces: Application to GPR

In this paper, we present an efficient numerical method to calculate the frequency and time responses of the field scattered by an object buried between two random rough surfaces. This method is called Generalized PILE (GPILE) method because it extends the PILE method which considers only two surfaces or an object buried under a surface. The GPILE method solves rigourously the Maxwell equations by using a simple matrix formulation. The obtained results have a straightforward physical interpretation and allow us to investigate the influence of the object buried between the two rough surfaces. We distinguish the primary echo of the upper surface, the multiple echoes coming from the lower surface and those arising from the object. The GPILE method is applied to simulate the Ground Penetrating Radar (GPR) signal at nadir. The resulting time response helps the user to detect the presence of the object buried between the two random rough surfaces.

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来源期刊

Progress In Electromagnetics Research B Engineering-Electrical and Electronic Engineering

CiteScore

2.70

自引率

0.00%

发文量

期刊介绍： Progress In Electromagnetics Research (PIER) B publishes peer-reviewed original, comprehensive and tutorial review articles on all aspects of electromagnetic theory and applications. It is a new journal in 2008, and freely available to all readers via the Internet. Manuscripts submitted to PIER B must not have been submitted simultaneously to other journals. Authors are solely responsible for the factual accuracy of their articles, and all articles are understood to have received clearance(s) for publication.