常规地基雷达方位偏差在线监测校正与工程实现  

Conventional ground-based radar’s azimuth deviation online monitoring and correction and engineering implementation

作　　者：江晶[1] 李佳炜 冯讯[1] 黄源源[1] JIANG Jing;LI Jiawei;FENG Xun;HUANG Yuanyuan(Air Force EarlyWarning Academy,Wuhan 430019,China)

机构地区：[1]空军预警学院,武汉430019

出　　处：《空军预警学院学报》2020年第4期256-260,共5页Journal of Air Force Early Warning Academy

摘　　要：针对常规地基雷达方位偏差影响雷达情报精度导致错情和保障中断问题,基于原始地杂波目测判断方位偏差原理,提出一种基于地标方位距离关联的雷达方位误差在线监测估计算法;并综合其它雷达方位偏差监测估计手段,设计了雷达方位误差在线监测、估计、补偿校正方案,形成常规地基雷达方位误差在线监测校正方法.性能分析和仿真实验验证表明,该方法能在线监测、估计、补偿、校正雷达方位偏差,最快监测时间略大于1个扫描周期,补偿后的偏差不大于雷达方位测量精度,且无需关机校正,便于在雷达终端上实现,能有效避免方位错情,减轻操作员负担.Aiming at the problem that the azimuth deviation of conventional ground-based radar affects the accuracy of radar information and leads to the wrong situation and the security interruption,this paper is based on the original principle of ground clutter visual judgment azimuth deviation to propose a radar azimuth derivation online monitoring and estimating algorithm based on the correlation of landmark,bearing and range.And then the paper combines with other azimuth derivation monitoring and estimating means to design an online monitoring,estimation and compensation scheme for radar bearing error,forming an online monitoring and correction method for azimuth error of conventional ground-based radar.Theoretical analyses,simulation and actual data verification show that the method can monitor,estimate,compensate and correct the radar bearing deviation online,with the fastest monitoring time slightly more than 1 scanning period;the deviation after compensation is not greater than the accuracy of radar azimuth measurement,without need for shutdown correction;the proposed method can effectively avoid the wrong position and reduce the operator’s burden,and it is also convenient for implementation on the radar terminals.

关 键 词：常规地基雷达 方位偏差 在线监测校正 地标 方位距离 地杂波 配准 雷达终端 

分 类 号：TN957[电子电信—信号与信息处理]