基于极化对比增强的导引头抗箔条算法  

Anti-chaff algorithm for seekers based on polarimetric contrast enhancement

作　　者：李金梁[1] 来庆福[1] 李永祯[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：《系统工程与电子技术》2011年第2期268-271,共4页Systems Engineering and Electronics

摘　　要：当质心干扰和雷达目标不可分辨时,如何对抗质心干扰是公认的难点问题。对利用极化对比增强技术抗质心干扰进行了研究。首先建立了干扰和目标不可分辨情况下极化雷达导引头的回波模型,然后对单脉冲比幅测角的结果进行了理论推导,得到了质心干扰下雷达角度测量值的统计特性。在此基础上,提出了通过极化对比增强抗质心干扰的方法。最后结合反舰导弹抗箔条质心干扰的背景,对本文方法的抗干扰性能进行了分析,证明了本方法的有效性。When interference and radar＇s targets become undistinguishable,how to suppress centroid-interference is an acknowledged difficult problem.It is studied to suppress centroid-interference using polarimetric contrast enhancement technology.Firstly,the echo model of a polarimetric radar seeker is built under the aforementional undistinguishable circumstances.The angle measurement using the amplitude comparison mono-pulse system is derived,and the statistical characteristics of angle measurement are given.Based on the above,a method by using polarimetric contrast enhancement technology to suppress centroid-interference is proposed.Finally,the method is applied to the background of how the anti-ship missile to suppress chaff jamming centroid-interference.The performance of the method is analyzed,and the method is proved to be effective.

关 键 词：雷达导引头 质心干扰 单脉冲 极化 角闪烁 

分 类 号：TN95[电子电信—信号与信息处理]