用复射线法分析凹槽散射  

Trough Scattering Analysis using Complex Ray Method

作　　者：阮颖铮[1] 刘万明[1] 

机构地区：[1]成都电子科技大学微波工程系

出　　处：《电子科技大学学报》1995年第6期596-600,共5页Journal of University of Electronic Science and Technology of China

基　　金：国家教委博士点基金

摘　　要：凹槽散射是开口腔结构的一种典型代表。用复射线方法十分简便地实现了凹槽结构散射宽度的预估，并用ＧＴＤ理论对复射线场在入射口面边缘上的绕射场贡献作了简化处理，计算结果与射线模式法所得结果吻合较好，但简化算法却可节省大量计算机时间。Trough scattering is a typical open-ended cavity problem.In this paper,the comples raymethod is used to analyze the radar echo width(REW)of a trough structure,and the geometrical theory of diffraction(GTD)is employed to deal with the diffracted contribution from the trough edges.The results obtained hereby agree well with those from the ray mode method,but the simplified method may save a lotof computer time.

关 键 词：电磁散射 雷达截面 开口腔结构 复射线 

分 类 号：TN951[电子电信—信号与信息处理]