典型抛面天线的空域极化特性及散射矩阵测量方法  

Polarization Scattering Matrix Measurement Based on Spatial Polarization Characteristic of Typical Parabolic Antenna

作　　者：戴幻尧[1] 罗佳[1] 李金梁[1] 李永帧[1] 王雪松[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《信号处理》2009年第9期1347-1352,共6页Journal of Signal Processing

基　　金：国家自然科学基金重点项目(60736006);国家自然科学基金青年科学基金项目(编号:60802078);国家973重大基础研究发展规划(编号No.51314);"十一五"武器装备预先研究项目(51309060305)

摘　　要：单极化雷达天线的极化特性在空域中并非一成不变,而是按一定规律变化的。本文研究了抛面反射天线的空域极化特性,通过数值计算验证了天线极化状态在不同空域指向上分布的规律。并以此为基础,讨论了立足于现有的单极化雷达,仅需一个极化通道对天线接收到雷达回波电压进行处理,完成雷达目标极化散射矩阵估计的方法。该法将可以大幅度的降低生产成本和设备复杂度,具有一定的理论参考价值和应用前景。The polarization properties of single polarized radar antenna in spatial is not static but change with some law which defined as spatial polarization characteristics （SPC）. The SPC of parabolic antenna is studied thoroughly at first. The distribution law of polarization states in different pointing space is obtained by numerical calculation and verified with simulation. Based on the SPC of typical reflector antenna,a novel PSM measurement methods which need only one polarization channel to process the received radar target＇ s echo is proposed. Furthermore, this novel approach has theory reference value and practicability due to its depressed production cost without adding extra instruments.

关 键 词：抛面反射天线 空域极化特性 交叉极化分量 极化比 目标散射矩阵测量 

分 类 号：TN95[电子电信—信号与信息处理]