几种典型目标的角闪烁特性分析  

Angular Glint of Some Canonical Targets

作　　者：黄斌科[1] 蒋延生[1] 汪文秉[1] 

机构地区：[1]西安交通大学电信学院微波与光通信研究所,陕西西安710049

出　　处：《系统工程与电子技术》2003年第11期1333-1335,1340,共4页Systems Engineering and Electronics

基　　金：国家教育部"培植计划"资助课题

摘　　要：从角闪烁的概念出发分析了谐振区典型目标的角闪烁特性。利用解析方法给出了无限长导体圆柱角闪烁的产生机理,角闪烁与电尺寸的关系;利用矩量法求解电磁场积分方程,分析了导体平板和有限长导体圆柱的远区散射场和波印廷矢量,发现导体平板和有限长导体圆柱的波印廷矢量在球坐标系下的3个分量随远区观察距离的平方衰减,因此对导体平板和有限长导体圆柱来说,由波印廷矢量法计算所得的角闪烁与观察距离有关。The characteristic of angular glint of some canonical targets in the resonance region is analyzed based on the concept of angular glint. Angular glint of an infinite conducting cylinder is calculated by using analytical method, and the relation between the value of angular glint and the electric scale of the cylinder is derived. By combining electric and magnetic integral equations with the moment method, the scattered field and Poynting vector of finite rectangular conducting plate and finite conducting cylinder are calculated. In the spherical coordinates, the three components of Poynting vector are all decayed with the square of observation distance. Consequently, the angular glint derived from the Poynting vector method is dependent on the observation distance for conducting plate and finite conducting cylinder.

关 键 词：电磁波散射 角闪烁 目标特征 

分 类 号：TN953[电子电信—信号与信息处理]