| Application of asymptotic waveform approximation technique to hybrid FE/BI method for 3D scattering |
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| 作者单位： | PENG Zhen（Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China;Department of Electronic Engineering, Beijing Institute of Technology, Beijing 100081, China;Graduated University of Chinese Academy of Sciences, Beijing 100039, China） ;SHENG XinQing（Department of Electronic Engineering, Beijing Institute of Technology, Beijing 100081, China） ; |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | The asymptotic waveform evaluation (AWE) technique is a rational function ap- proximation method in computational mathematics, which is used in many appli- cations in computational electromagnetics. In this paper, the performance of the AWE technique in conjunction with hybrid finite element/boundary integral (FE/BI) method is firstly investigated. The formulation of the AWE applied in hybrid FE/BI method is given in detail. The characteristic implementation of the application of the AWE to the hybrid FE/BI method is discussed. Numerical results demonstrate that the AWE technique can greatly speed up the hybrid FE/BI method to acquire wide-band and wide-angle backscatter radar-cross-section (RCS) by complex tar- gets.
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| 收稿时间： | 2006-03-22 |
| 修稿时间： | 2006-07-11 |
Application of asymptotic waveform approximation technique to hybrid FE/BI method for 3D scattering |
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| Peng Zhen,Sheng XinQing. Application of asymptotic waveform approximation technique to hybrid FE/BI method for 3D scattering[J]. Science in China(Information Sciences), 2007, 50(1): 124-134. DOI: 10.1007/s11432-007-2019-9 |
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| Authors: | Peng Zhen Sheng XinQing |
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| Affiliation: | 1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China;Department of Electronic Engineering, Beijing Institute of Technology, Beijing 100081, China;Graduated University of Chinese Academy of Sciences, Beijing 100039, China
2. Department of Electronic Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The asymptotic waveform evaluation (AWE) technique is a rational function ap- proximation method in computational mathematics, which is used in many appli- cations in computational electromagnetics. In this paper, the performance of the AWE technique in conjunction with hybrid finite element/boundary integral (FE/BI) method is firstly investigated. The formulation of the AWE applied in hybrid FE/BI method is given in detail. The characteristic implementation of the application of the AWE to the hybrid FE/BI method is discussed. Numerical results demonstrate that the AWE technique can greatly speed up the hybrid FE/BI method to acquire wide-band and wide-angle backscatter radar-cross-section (RCS) by complex tar- gets. |
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| Keywords: | hybrid FE/BI AWE electromagnetic scattering RCS |
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