| 电大导体目标电磁散射特性的投影迭代法分析 |
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| 引用本文： | 施长海,孙玉发.电大导体目标电磁散射特性的投影迭代法分析[J].微波学报,2004,20(4):33-35,39. |
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| 作者姓名： | 施长海 孙玉发 |
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| 作者单位： | 1. 安徽大学电子工程与信息科学系,合肥,230039;上海交通大学区域光纤通信网和新型光通信系统国家重点实验室,上海,200030
2. 安徽大学电子工程与信息科学系,合肥,230039 |
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| 基金项目： | 安徽省教育厅重点科研项目 (No .2 0 0 4kj0 0 2zd) |
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| 摘 要： | 将投影迭代法应用于分析任意二维和三维电大导体目标的电磁散射特性。该方法首先剖分传统矩量法得到的矩阵方程,然后通过投影迭代逐步修正未知电流值,进而计算目标的雷达散射截面。数值计算表明：该方法与传统矩量法计算结果相吻合,计算量大大降低。
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| 关 键 词： | 迭代法 投影 导体 矩阵方程 电磁散射 剖分 二维 矩量法 雷达散射截面 计算量 |
| 文章编号： | 1005-6122(2004)04-0033-03 |
The PIM Analysis of Electromagnetic Scattering Characteristics of Electrically Large Conducting Objects |
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| Shi Changhai,Sun Yufa.The PIM Analysis of Electromagnetic Scattering Characteristics of Electrically Large Conducting Objects[J].Journal of Microwaves,2004,20(4):33-35,39. |
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| Authors: | Shi Changhai Sun Yufa |
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| Affiliation: | Shi Changhai 1,2,Sun Yufa 1 |
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| Abstract: | The projection iterative method (PIM) is used to analyze electromagnetic scattering characteristics of two dimensional and three dimensional electrically large conducting objects in this paper. Integral equations can be reduced to algebraic linear equations by using the method of moments, the impendence matrix is divided into a series of small sub regions by decomposition. The surface currents of objects can be computed by the PIM iterative process, and the radar cross section can also be achieved. The numerical results are in good agreement with the results obtained by the method of moments, and the computation effort are considerably reduced by PIM. |
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| Keywords: | Radar cross section Method of moments Projection iterative method |
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