| 复杂目标外形拟合及散射截面计算 |
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| 引用本文： | 苏东林,王宝发,张采来.复杂目标外形拟合及散射截面计算[J].系统工程与电子技术,1990(12). |
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| 作者姓名： | 苏东林 王宝发 张采来 |
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| 作者单位： | 北京航空航天大学
(苏东林，王宝发)，北京航空航天大学(张采来) |
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| 摘 要： | 本文用修正的双三次参数样条拟合目标外形,可直接使用飞机外形CAD设计数据库,可拟合绕射点坐标,主曲率半径及主方向,短程线及其它一些几何参数,用一致几何绕射理论计算目标的雷达散射截面。计算精度为1dB左右,理论计算与实验结果吻合好。
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| 关 键 词： | 样条函数 外形 拟合 雷达截面 散射截面 后向散射 |
CONTOUR MIMICRY OF COMPLEX TARGETS AND CALCULATION OF RADAR CROSS SECTION |
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| Su Donglin,Wang Baofa and Zhang CailaiDept. of Elect. Eng.,Beijing University of Aeronautics and Astronautics.CONTOUR MIMICRY OF COMPLEX TARGETS AND CALCULATION OF RADAR CROSS SECTION[J].System Engineering and Electronics,1990(12). |
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| Authors: | Su Donglin Wang Baofa and Zhang CailaiDept of Elect Eng Beijing University of Aeronautics and Astronautics |
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| Abstract: | A modified method of directly using bicubic parameters spline interpolation of plane contour, is introduced. Diffraction points, principal radii of curvature, principal directions, geodesic line and other, parameters are mimicked by using this method. The radar cross section calculation of an arbitrary perfectly conducting convex target, based on VGTD, attains an accuracy of about 1dB. The theoretical calculations show good agreement with the experimental results. |
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| Keywords: | Radar cross section UGTD Contour mimicry Radar wave scattering |
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