| 基于抛物线方程求解二维电磁散射问题 |
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| 引用本文： | 陈大明,吴先良.基于抛物线方程求解二维电磁散射问题[J].合肥工业大学学报(自然科学版),2005,28(11):1477-1479. |
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| 作者姓名： | 陈大明 吴先良 |
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| 作者单位： | 安徽大学,计算智能与信号处理教育部重点实验室,安徽,合肥,230039 |
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| 基金项目： | 国家自然科学基金资助项目(60371041)，安徽省教育厅重点科研基金资助项目(2002kj32) |
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| 摘 要： | 文章应用抛物线方程求解二维凸面物体的双站雷达散射截面,模拟多体散射问题。其优点在于将传统的波动方程降维处理,采用步进迭代方法,节省大量计算资源。应用完全匹配层和有限差分法计算单个和多个圆柱的小角度双站RCS,计算结果和精确解基本吻合,且计算速度大大提高。
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| 关 键 词： | 抛物线方程 双站雷达散射截面 多体散射 |
| 文章编号： | 1003-5060(2005)11-1477-03 |
| 修稿时间： | 2004年12月30 |
2-D electromagnetic scattering calculations with the parabolic equation |
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| CHEN Da-ming,WU Xian-liang.2-D electromagnetic scattering calculations with the parabolic equation[J].Journal of Hefei University of Technology(Natural Science),2005,28(11):1477-1479. |
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| Authors: | CHEN Da-ming WU Xian-liang |
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| Abstract: | The parabolic equation(PE) is used to compute the bistatic RCS of two-dimensional convex objects and simulate the scattering of multi-objects.Since the PE method degrades the traditional wave equation's dimensions and uses the marching iteration method,a lot of computation resources are saved.The perfectly matched layer technique and the finite difference method are applied to computing the narrow-angle bistatic RCSs of the single cylinder and multiple cylinders.Numerical results are in good agreement with analytical solutions,and the speed of calculation is improved greatly. |
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| Keywords: | parabolic equation bistatic radar cross section(RCS) scattering of multi-objects |
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