| 弯曲平板的电磁散射特性分析 |
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| 引用本文： | 李烟,童创明,钟卫军,赵玉磊,吕丹. 弯曲平板的电磁散射特性分析[J]. 上海航天, 2009, 26(5): 20-23,60 |
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| 作者姓名： | 李烟 童创明 钟卫军 赵玉磊 吕丹 |
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| 作者单位： | 空军工程大学导弹学院,陕西,三原,713800 |
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| 摘 要： | 根据弯曲导体平板的特点，将电流在水平与竖直向分别进行离散，由电流连续性方程获得电荷离散公式，得到电场积分方程（EFIE）的离散形式。用泰勒展开消除格林函数积分中的奇异值，并通过积分近似求解，给出了一种改进的双共轭梯度迭代法（CGS）快速求解大型线性方程组。仿真结果表明：与原双共轭梯度迭代法相比，该法的收敛速度更快、精度更高。
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| 关 键 词： | 弯曲平板 矩量法 雷达散射截面积 改进的双共轭梯度迭代法 |
Analysis of Electromagnetic Scattering Characteristics of Rectangular Bent Plate |
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| LI Yan,TONG Chuang-ming,ZHONG Wei-jun,ZHAO Yu-lei,LU Dan. Analysis of Electromagnetic Scattering Characteristics of Rectangular Bent Plate[J]. Aerospace Shanghai, 2009, 26(5): 20-23,60 |
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| Authors: | LI Yan TONG Chuang-ming ZHONG Wei-jun ZHAO Yu-lei LU Dan |
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| Affiliation: | LI Yan, TONG Chuang-ming, ZHONG Wei-jun, ZHAO Yu-lei, LU Dan (The Missile Institute of Air Force Engineering University, Sanyuan Shaanxi 713800, China) |
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| Abstract: | According to the characteristics of rectangular bent plate, the electric current on the plate was discretized along x and y direction respectively. The factual situation the discrete formula of electric charge was deduced through the equation of continuity of electric current, and the discrete electric field integral equation （EFIE） was obtained. The singular value problem in the Green＇ s function integral was solved by Taller expansion, and integral approximation was applied to solve the equation. Then an improved bi-conjugate gradient method （CGS） was adopted to solve big linear equations. The simulation results showed that the faster speed and higher precision could be gained through CGS. |
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| Keywords: | Rectangular bent plate Method of moment Radar cross section Improved bi-conjugate gradient method |
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