| C-R样条用于低散射目标爬行波求解 |
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| 引用本文： | 宁焕生,杨志凌,王宝发.C-R样条用于低散射目标爬行波求解[J].北京航空航天大学学报,2000,26(2):137-140. |
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| 作者姓名： | 宁焕生 杨志凌 王宝发 |
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| 作者单位： | 北京航空航天大学 电子工程系 |
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| 摘 要： | C-R(Catmull-Rom)样条具有直观、稳定、灵活、不需反求控制顶点等优点,特别适用于具有复杂外形的飞行器进行几何描述. 利用 (G1,k=1) Catmull-Rom样条及其张量积曲面对低散射目标进行几何建模,并求解低散射目标爬行波RCS贡献,通过计算结果与实验结果比较,获得令人满意的结果.
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| 关 键 词： | 电波散射 雷达 建立模型 爬行波 图形电磁计算 |
| 文章编号： | ： |
| 收稿时间： | 1998-10-19 |
C-R样条用于低散射目标爬行波求解 |
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| NING Huan,sheng,YANG Zhi,ling,WANG Bao,fa.C-R样条用于低散射目标爬行波求解[J].Journal of Beijing University of Aeronautics and Astronautics,2000,26(2):137-140. |
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| Authors: | NING Huan sheng YANG Zhi ling WANG Bao fa |
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| Institution: | Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering |
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| Abstract: | The geometric modelling and electromagnetic scattering characteristics of complex targets are discussed. In order to overcome the insufficiency of some other spline functions, the contour fitting of the targets was made conveniently and correctly by using Catmull Rom spline fitting function. To the low RCS target, the effect of creeping wave is remarkable and larger than that of facets and wedges in some cases. Based on the C R spline fitting theory, the problem of computing geodesic has been solved and a practical computing example of Low RCS target fully proves the validity of the method by using the hybrid method of GRECO(Graphical Electromagnetic Computing) and creeping wave theory. the results can have practical engineering worth. |
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| Keywords: | radio wave scattering radar model building creeping wave graphical electromagnetic computing |
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