ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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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 |
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Abstract 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.
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Received: 17 March 2014
Revised: 15 April 2014
Accepted manuscript online:
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PACS:
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41.20.-q
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(Applied classical electromagnetism)
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42.25.Bs
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(Wave propagation, transmission and absorption)
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42.25.Dd
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(Wave propagation in random media)
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Fund: 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). |
Corresponding Authors:
Xu Run-Wen
E-mail: rwxu719@126.com
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Cite this article:
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 2014 Chin. Phys. B 23 114101
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