提高一维相控阵二次监视雷达高仰角目标测角精度的方法  

A Method to Improve Angle Measurement Accuracy of High Elevation Targets for One-dimensional Phased Array SSR

作　　者：王爱国 WANG Aiguo(Sichuan Jiuzhou ATC Technology Co.,Ltd.,Mianyang,Sichuan 621000)

机构地区：[1]四川九洲空管科技有限责任公司,四川绵阳621000

出　　处：《火控雷达技术》2022年第4期38-41,共4页Fire Control Radar Technology

摘　　要：一维相控阵天线波束指向随仰角变化会发生偏移,对高仰角目标的测角精度产生较大影响。本文提出了一种高仰角目标测角误差修正方法,该方法通过测量天线不同仰角真实的天线方向图,建立与仰角相关的天线波束指向数据,利用二次监视雷达C模式获得飞机相对雷达仰角,对高仰角目标的天线波束指向进行修正,提高了一维相控阵二次监视雷达高仰角目标的测角精度。The beam pointing of one-dimensional phased array antenna shifts with the change of elevation angles,which has a great impact on the angle measurement accuracy of high elevation targets.In this paper,a method for correcting the angle measurement error of high elevation targets was proposed.By measuring the real antenna patterns of different elevation angles of the antenna,the antenna beam pointing data that were related to the elevation angle was set.The relative radar elevation of the aircraft was obtained by the C mode of the secondary surveillance radar(SSR).The antenna beam pointing of high elevation targets was then corrected,and the angle measurement accuracy of high elevation targets of the one-dimensional phased array secondary surveillance radar was improved.

关 键 词：一维相控阵 二次监视雷达 天线波束指向 气压高度 

分 类 号：TN95[电子电信—信号与信息处理]