| 波束模拟法用于粗糙面散射问题的有效性分析 |
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| 引用本文： | 张坤书,薛谦忠.波束模拟法用于粗糙面散射问题的有效性分析[J].武汉理工大学学报,2005,27(7):64-67. |
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| 作者姓名： | 张坤书 薛谦忠 |
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| 作者单位： | 1. 平顶山工学院基础科学教学部,平顶山,467001
2. 中国科学院电子学研究所,北京 100080 |
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| 基金项目： | 国防科技预研基金(98J3.1.2). |
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| 摘 要： | 波束模拟方法可用于数值计算宽波束入射，或略入射的粗糙面散射问题，减少所需计算机内存。通过引入能量守恒测度系数和矩量法，以平面理想导体和随机粗糙面为例详细地研究了波束模拟方法在数值计算散射问题时，其计算的精度与入射波束的极化状态、子波束参数和散射面粗糙度之间关系。
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| 关 键 词： | 波束模拟 粗糙面 散射 |
| 文章编号： | 1671-4431(2005)07-0064-03 |
| 修稿时间： | 2005年4月10日 |
Analysis on the Validity of the Beam Simulation Applied to Scattering from a Rough Surface |
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| ZHANG Kun-shu,XUE Qian-zhong.Analysis on the Validity of the Beam Simulation Applied to Scattering from a Rough Surface[J].Journal of Wuhan University of Technology,2005,27(7):64-67. |
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| Authors: | ZHANG Kun-shu XUE Qian-zhong |
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| Affiliation: | ZHANG Kun-shu1,XUE Qian-zhong2 |
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| Abstract: | When the method of the beam simulation is applied to calculate the characteristics of electromagnetic wave scattering from a rough surface illuminated by an incident large beam, the requirement for the memory of a computer is decreased greatly. In this paper, the precision of this method is discussed in detail through energy estimating factor and its comparison with the method of moments. Under the condition that a perfectly conducting plane or a randomly rough surface is illuminated by an incident beam, the dependence of the precision of this method on the incident beam polarized status, the parameters of the subbeam and the roughness of surface is studied. |
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| Keywords: | method of the beam simulation rough surface scattering |
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