可穿透表面散射的迭代物理光学(IPO)方法

2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2021-11-01 DOI:10.1109/comcas52219.2021.9629069

Roi Blumberg, I. Gershenzon, Y. Brick, Semion Duberstein, A. Boag

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引用次数: 0

摘要

提出了一种迭代物理光学算法，用于分析由可穿透表面和不透明表面组成的可穿透声学大物体的散射。散射面通常假定为非凸面和多重连接，因此应考虑自阴影效应。这是通过扩展阴影辐射IPO (SR-IPO)方案来实现的，该方案是为不可穿透表面散射体的情况而开发的。对于可穿透表面情况，修改了IPO散射问题公式，使其与SR-IPO过程相适应。讨论了该配方的主要特征，并对该配方进行了初步验证，并提出了一个声学代表性的例子。

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An Iterative Physical Optics (IPO) Approach for Scattering by Penetrable Surfaces

An iterative physical optics (IPO) algorithm for the analysis of scattering by penetrable acoustically large objects, composed of penetrable and opaque surfaces, is proposed. The scatterer surfaces are assumed in general to be non-convex and multiply connected, such that self-shadowing effects should be accounted for. This is done by extending the shadow radiation IPO (SR-IPO) scheme, developed for the case of impenetrable surface scatterers. For the penetrable surfaces case, the IPO scattering problem formulation is modified in order to make it compatible with the SR-IPO process. The key features of the formulation are discussed and a rudimentary validation of the formulation is presented for an acoustically representative example.

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来源期刊

2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)

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