| Time-Domain Scattering Modelling of Two-Dimensional Cylinder Located on a Rough Surface |
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| 作者姓名： | 张民 李乐伟 李灵霞 吴振森 |
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| 作者单位： | [1]School of Science, Xidian University, Box 2 70, Xi ＇an 710071 [2]Department of Electrical and Computer Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119620 |
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| 基金项目： | Supported by the National Pre-research Foundation of China under Grant Nos 51477030105DZ0102 and 9140A03020206DZ0112. |
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| 摘 要： | Numerical modelling on the transient electromagnetic scattering by a two-dimensional （21）） cylinder located on a time-evolving rough surface is presented by using time-domain integral equations. The proposed special choice of a tapered Gauss pulse incident wave removes the truncation error from the rough surface. Additionally, a two-level averaging technique is utilized to overcome the instability from the time marching procedure of solving integral equations. Excellent correspondences between the surface current distributions, as well as the far-zone fields, computed by the proposed method and that obtained by the traditional method of moments associated with the inverse discrete Fourier transformation scheme demonstrate the accuracy of the modelling.
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| 关 键 词： | 散射 粗糙表面 光学 折射 |
| 收稿时间： | 2007-1-12 |
| 修稿时间： | 2007-01-12 |
Time-Domain Scattering Modelling of Two-Dimensional Cylinder Located on a Rough Surface |
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| ZHANG Min,LI Le-Wei,LI Ling-Xia,WU Zhen-Sen.Time-Domain Scattering Modelling of Two-Dimensional Cylinder Located on a Rough Surface[J].Chinese Physics Letters,2007,24(6):1563-1566. |
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| Authors: | ZHANG Min LI Le-Wei LI Ling-Xia WU Zhen-Sen |
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| Institution: | School of Science, Xidian University, Box 270, Xi'an 710071Department of Electrical and Computer Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119620 |
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| Abstract: | Numerical modelling on the transient electromagnetic scattering by a two-dimensional (2D) cylinder located on a time-evolving rough surface is presented by using time-domain integral equations. The proposed special choice of a tapered Gauss pulse incident wave removes the truncation error from the rough surface. Additionally, a two-level averaging technique is utilized to overcome the instability from the time marching procedure of solving integral equations. Excellent correspondences between the surface current distributions, as well as the far-zone fields, computed by the proposed method and that obtained by the traditional method of moments associated with the inverse discrete Fourier transformation scheme demonstrate the accuracy of the modelling. |
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| Keywords: | 41 20 Jb 42 25 Dd 42 25 Fx |
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