| 复杂目标散射强度的三维分布特性 |
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| 引用本文： | 刘久文,李建辉,韩学文,李青. 复杂目标散射强度的三维分布特性[J]. 北京航空航天大学学报, 2001, 27(6): 709-712 |
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| 作者姓名： | 刘久文 李建辉 韩学文 李青 |
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| 作者单位： | 1.北京航空航天大学 电子工程系 |
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| 摘 要： | 建立复杂目标几何外形的数学模型,对独立目标使用外法向判断可见面元,对复杂目标使用Z-buffer算法处理自动遮挡问题.通过求解电磁场边值问题求解目标表面的等效电磁流分布,并求解散射强度的三维分布特性.仿真计算结果被若干测试结果验证,证明该方法的精度较高、实用性强、可靠性好.算法可以直观地显示目标散射强度的三维分布图.
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| 关 键 词： | 电磁波散射 雷达目标 算法 可视电磁学 计算电磁学 |
| 文章编号： | 1001-5965(2001)06-0709-04 |
| 收稿时间： | 2000-03-28 |
| 修稿时间： | 2000-03-28 |
Study on Three Dimensional Scattering Distribution of Complicated Targets |
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| LIU Jiu-wen,LI Jian-hui,HAN Xue-wen,LI Qing. Study on Three Dimensional Scattering Distribution of Complicated Targets[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(6): 709-712 |
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| Authors: | LIU Jiu-wen LI Jian-hui HAN Xue-wen LI Qing |
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| Affiliation: | 1.Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering2. Beijing University of Aeronautics and Astronautics, School of Mechanical Engineering and Automation |
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| Abstract: | By setting up the numerical model of a complicated target, applying outside normal vectors of visible patches of each individual body, and useing Z buffer algorithm to solve shielding between multi bodies of complicated targets, the three dimensional scattering problems are analyzed successfully. The currents on the surface of the targets are calculated by solving EM boundary problems. The results obtained by the algorithm are verified by tested results. The method is proved to more accrete, practical, and reliable. The three dimensional scattering distribution could be given in visible way. |
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| Keywords: | electromagnetic wave scattering radar targets algorithms visible computational electromagnetism computational electromagnetism |
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