一种基于AIS数据的机载雷达系统误差实时自动标校方法  

A method for real-time calibration of airborne radar system errors based on AIS data

作　　者：马军 丁希雅 朱文祥 MAJun;DING Xiya;ZHU Wenxiang(No.38th Research Institute,China Electronics Technology Group Corporation,Hefei 230088,China;Key Laboratory of Aperture Array and Space Application,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088 [2]孔径阵列与空间探测安徽省重点实验室,合肥230088

出　　处：《空天预警研究学报》2024年第2期90-95,共6页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

摘　　要：在海上监控中,机载雷达系统常因系统误差导致目标定位不准确,影响航行安全和管理效率.为此提出了一种结合自动识别系统(AIS)数据的机载雷达系统误差实时自动标校方法.首先通过时空对准与数据关联算法匹配AIS目标和雷达探测目标,确立对应关系;然后使用AIS数据作为基准,运用多维特征误差阈值的收敛条件控制,实现对雷达探测目标航迹数据误差的实时修正;最后通过实地收集的AIS数据与雷达数据进行了试验设计与验证.试验结果验证了所提方法能够有效地自动检测并校正系统误差.In maritime surveillance,airborne radar systems often suffer from inaccurate target positioning due to system errors,which affects navigational safety and management efficiency.In view of the problem,this paper proposes a real-time automatic calibration method for airborne radar system errors combined with Automatic Identification System(AIS)data.In the proposed method,AIS targets and radar-detected targets are matched through spatiotemporal alignment and data association algorithms to establish the corresponding relationship.Then,the AIS data is used as a benchmark,and the convergence condition control of multidimensional feature error thresholds is employed to realize the real-time correction for the track data errors of radar-detected targets.Experimental results verify the effectiveness of the proposed method.The test design and verification analysis conducted with the field-collected AIS data and radar data demonstrate that this method can effectively detect and correct system errors automatically.

关 键 词：机载雷达 自动识别系统 系统误差 实时标校 

分 类 号：TN958[电子电信—信号与信息处理]