空间两点源的单脉冲测角极化响应研究  

Polarimetric Response for Dual-Point Sources in Monopulse Angular Measurement System

作　　者：张思远[1] 李永祯[1] 肖顺平[1] 

机构地区：[1]国防科学技术大学,湖南长沙410073

出　　处：《雷达科学与技术》2015年第5期467-472,共6页Radar Science and Technology

基　　金：国家自然科学基金青年科学基金(No.41301490)

摘　　要：从雷达极化的角度分析了空间多散射/辐射源的极化敏感性,为消除空间多散射/辐射源对单脉冲雷达在角度测量上带来的严重影响提供可能的解决方向。首先分析了单脉冲雷达的测角原理,建立了空间两点源在单脉冲测角系统中的极化响应模型,之后系统研究了目标散射矩阵、目标回波幅度比和目标起伏特性对单脉冲测角的影响,得到了空间多散射/辐射源对极化有显著敏感性的结论。对提高雷达导引头抗干扰性能以及对抗拖曳式诱饵具有较大参考价值。Polarization sensitivity of multi-scattering/multi-radiation source is analyzed from the point of view of the radar polarization. It gives potential solutions for eliminating the serious impact of multi-scattering/ multi-radiation sources on monopulse radar angular measurement. Firstly, the monopulse radar angular measurement principle is studied, and a polarized response model of dual-point sources in a monopulse angle measurement system is established. Then the impacts of target scattering matrix, the amplitude ratio of echoes and fluctuating char- acteristics on the monopulse angle measurement are discussed, obtaining the conclusion that multi-scattering/ multi-radiation sources are sensitive to polarization significantly. The works of the thesis have the reference value for improving radar seeker＇s performance on anti-jamming as well as anti-towed decoy.

关 键 词：单脉冲雷达 两点源 极化 抗干扰 

分 类 号：TN973.1[电子电信—信号与信息处理]