复合电磁散射分析中的精确几何建模

doi:10.3969/j.issn.1001-2400.2012.06.015

Abstract

Abstract:

An approach to studying composite electromagnetic (EM) scattering from the 2-D conducting rough surface and half-buried 3-D conducting target is proposed from geometry modeling to radar cross section (RCS) calculation. A two dimensional rough surface is simulated using the spectral method, which is then converted into a continuous curved surface through inverse engineering. The target model and rough surface model are combined together into a very accurate composite model, after which the surface mesh is generated with the information on the incidence frequency. Then the physical optics method (PO) and multi-level fast multiple algorithm (MLFMA) are respectively employed to study the scattering problem. The results of the single rough surface and the combinative model are given and compared.

Key words: electromagnetic scattering, rough surfaces, geometry modeling, physical optics, multi-level fast mutiple algorithm

CLC Number:

TN011

LI Jie;GUO Lixin;HE Qiong;WU Zhensen;WANG Xiaobing. Accurate geometry modeling in analysis of composite EM scattering[J].J4, 2012, 39(6): 92-98.

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Accurate geometry modeling in analysis of composite EM scattering

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