一种三维转台系统角度误差校正算法  

An Angle Error Correction Algorithm for 3D Turntable System

作　　者：陈祎 雷舒杰 赵勇武 王昭 蔡晔 CHEN Yi;LEI Shujie;ZHAO Yongwu;WANG Zhao;CAI Ye(Shanghai Radio Equipment Research Institute,Shanghai 200090,China)

机构地区：[1]上海无线电设备研究所,上海200090

出　　处：《无线电工程》2021年第5期416-420,共5页Radio Engineering

摘　　要：针对转台安装误差和耦合误差引起的雷达系统角度测量误差放大的问题,利用主动雷达测角精度高的优点,在主动稳定跟踪的情况下,分别转动转台和移动目标,获得雷达系统天线回转中心和转台回转中心的距离和角度偏移量,在此基础上推导了转台方位俯仰角度之间的耦合关系,给出了雷达转台系统角度误差校正算法的评价方法。仿真结果表明,该算法能够有效地消除转台系统的安装误差及耦合误差,极大地提高了雷达系统角度测量误差的可信度。To deal with the problem of angle measurement error amplification of radar system caused by the installation error and coupling error of turntable,the distance and angle offsets between the rotating center of the antenna and the rotating center of the turntable are obtained by taking advantage of the high accuracy of angle measurement of active radar and rotating respectively the turntable and moving target respectively under the condition of active and stable tracking.Then the coupling relationship between the azimuth and pitch angle of the turntable is derived,the evaluation method of Angle Error Correction Algorithm for radar turntable system is presented.The simulation results show that the algorithm can effectively eliminate the installation error and coupling error of the turntable system,and greatly improve the credibility of the angle measurement error of the radar system.

关 键 词：转台系统 安装误差 耦合误差 校正算法 测角误差 

分 类 号：TN971[电子电信—信号与信息处理]