基于GDOP的红外跟踪系统双站交汇测距能力分析  

Analysis of two-station intersection ranging capability of GDOP-based infrared tracking system

作　　者：王东 张恒伟 刘小虎 WANG Dong;ZHANG Heng-wei;LIU Xiao-hu(Key Laboratory of Electro-Optical Countermeasures Test&Evaluation Technology,Luoyang 471003,China)

机构地区：[1]光电对抗测试评估技术重点实验室,河南洛阳471003

出　　处：《激光与红外》2022年第10期1538-1542,共5页Laser & Infrared

摘　　要：分析了红外跟踪系统双站交汇测距理论,引入GDOP作为交汇测距精度评价指标,对红外跟踪系统测距精度进行了仿真,得到了不同条件下测距误差。结果表明:双站交汇测距误差与红外跟踪系统自身的测角精度、目标位置、目标距离密切相关。给定条件下,方位角20°时,5 km~60 km范围测距误差在1.5%~24%之间逐渐增加;方位角90°时,5 km~60 km范围红外跟踪系统测距误差在1%~8%之间逐渐增加。In this paper,the two-station intersection ranging theory of infrared tracking system is analyzed,GDOP is introduced as the evaluation index of intersection ranging accuracy,and the simulation of infrared tracking system ranging accuracy is carried out to obtain the ranging errors under different conditions.The results show that the the two-station intersection ranging error is closely related to the angular accuracy,target position and target distance of the infrared tracking system.Under the given conditions,when the azimuth angle is 20°,the ranging error of 5 km~60 km increases gradually between 1.5%and 24%,and when the azimuth angle is 90°,the ranging error of infrared tracking system increases gradually between 1%and 8%in the range of 5 km~60 km.

关 键 词：GDOP 红外跟踪系统 交汇测距 测距误差 

分 类 号：TN219[电子电信—物理电子学] TN976