| 介质体散射分析中奇异积分处理 |
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| 引用本文： | 李西敏,童创明,付树洪.介质体散射分析中奇异积分处理[J].上海航天,2009,26(2):15-18. |
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| 作者姓名： | 李西敏 童创明 付树洪 |
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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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| 基金项目： | 陕西省自然科学基金，空军工程大学研究生创新基金 |
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| 摘 要： | 为消除高阶矩量法（MOM）求解表面积分方程时的奇异积分,提出了一种采用混合域基函数精确计算奇异积分的方法。通过分离奇异积分项,用变量替换求解析解,与高斯积分法获得的非奇异积分值相加,求得阻抗元素。仿真计算表明：该法的结果和文献中低价MOM吻合。
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| 关 键 词： | 高阶矩量法 奇异积分 变量替换 混合基函数 阻抗元素 |
Treatment of Singular Integral in Dielectric Body Scattering |
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| LI Xi-min,TONG Chuang-ming,FU Shu-hong.Treatment of Singular Integral in Dielectric Body Scattering[J].Aerospace Shanghai,2009,26(2):15-18. |
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| Authors: | LI Xi-min TONG Chuang-ming FU Shu-hong |
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| Institution: | (The Missile Institute of Air Force Engineering University, Sanyuan Shaanxi 713800, China) |
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| Abstract: | To eliminate singular integrals when high order momentum of method was applied to solve surface integral equations, a method based on mixed base function was proposed in this paper. The singular integrals were separated from the whole integrals and variable substitution was adopted to obtain the analytic result. The impedance matrix elements were composed of analytic result and numerical result. The simulation results showed that bistatic radar cross section computed by this method was well agreed with that in the references. |
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| Keywords: | High order momentum of method Singular integral Variable substitution Mixed base function Impedance element |
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