An iterative analytic-numerical method for scattering from a target buried beneath a rough surface

doi:10.1088/1674-1056/23/11/114101

中国物理B ›› 2014, Vol. 23 ›› Issue (11): 114101-114101.doi: 10.1088/1674-1056/23/11/114101

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

An iterative analytic-numerical method for scattering from a target buried beneath a rough surface

徐润汶, 郭立新, 王蕊

School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China

收稿日期:2014-03-17 修回日期:2014-04-15 出版日期:2014-11-15 发布日期:2014-11-15
基金资助:
Project supported by the National Natural Science Foundation of China for Distinguished Young Scholars (Grant No. 61225002), the Fundamental Research Funds for the Central Universities, China (Grant No. K50510070001), and the National Natural Science Foundation of China (Grant No. 61301070).

An iterative analytic-numerical method for scattering from a target buried beneath a rough surface

Xu Run-Wen (徐润汶), Guo Li-Xin (郭立新), Wang Rui (王蕊)

School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China

Received:2014-03-17 Revised:2014-04-15 Online:2014-11-15 Published:2014-11-15
Contact: Xu Run-Wen E-mail:rwxu719@126.com
Supported by:
Project supported by the National Natural Science Foundation of China for Distinguished Young Scholars (Grant No. 61225002), the Fundamental Research Funds for the Central Universities, China (Grant No. K50510070001), and the National Natural Science Foundation of China (Grant No. 61301070).

摘要/Abstract

摘要：

An efficiently iterative analytical-numerical method is proposed for two-dimensional (2D) electromagnetic scattering from a perfectly electric conducting (PEC) target buried under a dielectric rough surface. The basic idea is to employ the Kirchhoff approximation (KA) to accelerate the boundary integral method (BIM). Below the rough surface, an iterative system is designed between the rough surface and the target. The KA is used to simulate the initial field on the rough surface based on the Fresnel theory, while the target is analyzed by the boundary integral method to obtain a precise result. The fields between the rough surface and the target can be linked by the boundary integral equations below the rough surface. The technique presented here is highly efficient in terms of computational memory, time, and versatility. Numerical simulations of two typical models are carried out to validate the method.

关键词: boundary integral method (BIM), Kirchhoff approximation (KA), rough surface, target

Abstract:

Key words: boundary integral method (BIM), Kirchhoff approximation (KA), rough surface, target

中图分类号: (Applied classical electromagnetism)

41.20.-q

42.25.Bs (Wave propagation, transmission and absorption) 42.25.Dd (Wave propagation in random media)

徐润汶, 郭立新, 王蕊. An iterative analytic-numerical method for scattering from a target buried beneath a rough surface[J]. 中国物理B, 2014, 23(11): 114101-114101.

Xu Run-Wen (徐润汶), Guo Li-Xin (郭立新), Wang Rui (王蕊). An iterative analytic-numerical method for scattering from a target buried beneath a rough surface[J]. Chin. Phys. B, 2014, 23(11): 114101-114101.

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An iterative analytic-numerical method for scattering from a target buried beneath a rough surface

An iterative analytic-numerical method for scattering from a target buried beneath a rough surface

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