射线法在任意形状开口腔体雷达散射特性研究中的应用

应用科学学报 ›› 1993, Vol. 11 ›› Issue (4): 328-332.

射线法在任意形状开口腔体雷达散射特性研究中的应用

肖高标, 张钧

国防科学技术大学

收稿日期:1991-08-22 修回日期:1992-04-17 出版日期:1993-12-31 发布日期:1993-12-31

APPLICATION OF SBR——CALCULATING THE RCS OF AN ARBITRARY SHAPED OPEN-ENDED CAVITY

XIAO GAOBIAO, ZHANG JUN

National University of Defence Technology

Received:1991-08-22 Revised:1992-04-17 Online:1993-12-31 Published:1993-12-31

摘要/Abstract

摘要： 简述了射线法(SBR)原理,在此基础上用射线法计算了一个形状复杂的"S"型开口腔体的雷达散射面积(RCS).该腔体横截面从跑道形逐渐变化到圆形,内壁上涂有两层吸波材料.曲面拟合是分段进行的,所有模拟函数都是简单的直纹面方程形式.计算结果与测量值基本吻合.

关键词: 样条模拟, 曲率矩阵, 雷达散射面积, 射线法, 扩散因子, 曲面模拟, 样条函数

Abstract: The main idea of SBR——shooting and bouncing rays——is discussed in this paper. Using SBR, the EOS of a complicated S-shaped open-ended cavity is calculated. The cavity, with two layers of absorber-lining,has a nonuniform cross section. The cavity curvature is fitted with a series of waveguide configurations, the fitting functions being the simple ones. It is found that the calculated results are in agreement with the measured results.

Key words: spline fit, shooting and bouncing rays, divergence factor, curvature fitting, spline function, radar cross section, curvature matrix

肖高标, 张钧. 射线法在任意形状开口腔体雷达散射特性研究中的应用[J]. 应用科学学报, 1993, 11(4): 328-332.

XIAO GAOBIAO, ZHANG JUN. APPLICATION OF SBR——CALCULATING THE RCS OF AN ARBITRARY SHAPED OPEN-ENDED CAVITY[J]. Journal of Applied Sciences, 1993, 11(4): 328-332.