海面目标光电单站无源定位与误差分析  

Photoelectric single-station passive location and error analysis to sea surface target

作　　者：檀立刚 程旗[1,2] 魏美亭 李捷 骆明伟[1] TAN Ligang;CHENG Qi;WEI Meiting;LI Jie;LUO Mingwei(Technology Innovation Center,Sichuan Jiu Zhou Electric Group Co.,Ltd.,Mianyang 621000,China;School of Information and Technology,Southwest Jiaotong University,Chengdu 610097,China)

机构地区：[1]四川九洲电器集团有限责任公司技术创新中心,四川绵阳621000 [2]西南交通大学信息科学与技术学院,四川成都610097

出　　处：《应用光学》2024年第4期673-684,共12页Journal of Applied Optics

基　　金：某纵向预研项目(315xxxxxxxx)。

摘　　要：为实现光电侦察设备对海面舰船目标单站无源定位,提出了对海面目标的高精度近实时光电单站无源定位方法。建立了单站无源定位方程,分析了目标定位误差,探讨了影响定位误差因素,给出了单站无源定位的应用建议。仿真结果表明:在17.899 km距离处单站无源定位的定位误差约为1.672%R,单次定位时间约20 ms;位置、纬度、经度和高度误差分别服从N(299.31 m,197.39 m)、N(4.944×10^(-5°),2.665×10^(-3°))、N(4.038×10^(-5°),1.899×10^(-3°))、N(-0.485 m,14.165 m)的正态分布;俯仰角、方位角和目标高度的误差对定位精度影响较大,俯仰角在[-120°,-15°]范围内定位结果可靠,目标高度误差在[-200 m,200 m]范围内,定位误差小于800 m,实现了对海面目标的高精度近实时单站无源定位。提出的方法适用于具备高度参考面估计的海面、地面和空中目标的单站无源定位。To realize single-station passive location to sea surface ship target by photoelectric reconnaissance equipment,the method of high-precision and near-real-time photoelectric single-station passive location to sea surface target was proposed.The equations of single-station passive location were constructed,the location errors were analyzed,the factors affecting the location errors were explored,and the application suggestions of single-station passive location were given.Simulation results show that the location error is about 1.672%R at range of 17.899 km,with once location time about 20 ms.The errors of location,latitude,longitude and altitude are separately subject to normal distribution with N(299.31 m,197.39 m),N(4.944×10^(-5°),2.665×10^(-3°)),N(4.038×10^(-5°),1.899×10^(-3°))and N(-0.485 m,14.165 m).The errors of pitch,azimuth and target altitude have a great influence on the location accuracy.The location results are reliable when pitch is in the domain of[-120°,-15°],and the location error is smaller than 800 m when target altitude error is in the domain of[-200 m,200 m],which realizes the high-precision and near-real-time single-station passive location to sea surface target.The proposed method is suitable for single-station passive location of sea surface,ground and air targets with reference plane of target altitude.

关 键 词：光电侦察设备 海面目标 单站无源定位 误差 

分 类 号：TN215[电子电信—物理电子学] TN219