摘要
为有效提高雷达探测精度,提出一种系统误差非均匀分布下的拟合分区校准方法。该方法首先对于雷达对海量测多目标信息与自动识别系统(AIS)提供的真值数据进行时空对准与相关处理得到误差序列;进而给出了两种非均匀分布下系统误差分布假设;在假设合理性的基础上,通过拟合处理对雷达探测覆盖海域进行区域划分,得到系统误差估计值对对海雷达进行校准。最后,实验证明了该方法的有效性。
In order to effectively improve the detection accuracy of the radar a calibration method based on fitted partitioning under non-uniform distribution of system errors is proposed.Firstly spatio-temporal alignment between the marine multi-target information obtained by the radar and the truth data provided by Automatic Identification System(AIS)as well as correlative processing are carried out and the error sequence is obtained.Furthermore the assumption of system error distribution based on two non-uniform distribution modes is given.On the basis of the rationality of the assumption the coverage area of radar detection is divided by fitting processing.The estimated value of system errors is obtained and it is used for the calibration of the radar.Finally the experiment proves the effectiveness of the method.
作者
董云龙
黄高东
李保珠
DONG Yunlong;HUANG Gaodong;LI Baozhu(Naval Aviation University,Yantai 264001 China)
出处
《电光与控制》
CSCD
北大核心
2020年第3期69-74,共6页
Electronics Optics & Control
基金
国家自然科学基金(61871391,61871392,U1633122)
中国博士后科学基金(2017M620862)
“泰山学者”和中国科协“青年人才托举工程”专项经费资助。
关键词
雷达
探测精度
误差校准
非均匀分布
拟合分区
radar
detection accuracy
error calibration
non-uniform distribution
fitted partitioning
