摘要
目前复杂目标的建模方法,一般使用自开发的专用程序分解或是部件分解法,这些方法改动繁琐、不通用、计算误差大。为此提出了使用通用计算机辅助设计软件(CAD)建立几何模型和网格划分,最终通过模型转换程序将目标的网格面元数据传递给RCS计算程序。重点研究了复杂目标的通用几何建模、电磁建模和模型转换的方法,以及适合实际工程应用的计算方法。通过仿真和实测数据的比对,该方法适用任意复杂目标RCS计算,具有较高计算精度和效率。
At present, commonly there are two methods of complex targets modeling which are decompounding the complex targets using self-developed special program and decompounding approach. However,both of them are uncommon, also there are large calculating errors and it is very complicate to update model using either of the two methods. Therefore, this paper advances a method which is using computer aided design （CAD） to build geo- metric model and mesh generation,and then transfer mesh data to radar RCS program using model transforma- tion program. This paper mainly researches on common geometric model of complex targets, electromagnetism modeling,model transformation approach and calculating method which is applicable practical application. The comparison of the simulation data with test data shows that this method can be applied to RCS calculation of any complex target with high precision and efficiency.
出处
《探测与控制学报》
CSCD
北大核心
2008年第6期46-50,共5页
Journal of Detection & Control
基金
国防重点预研项目资助(51303020703-2)
关键词
雷达散射截面
等效边缘电磁流
多次绕射
射线追踪
radar cross section （RCS）
equivalent edge current （EEC）
multiple diffraction
ray tracing
