一种新的机载光电侦察系统目标定位精度分析方法  

A new precision analysis method for target localization of airborne optoelectronic reconnaissance systems

作　　者：袁美桂 魏志强[1] 轩新想[1] YUAN Meigui;WEI Zhiqiang;XUAN Xinxiang(The Third Research Institute of China Electronics Thechnology Group Corporation,Beijing 100015,China)

机构地区：[1]中国电子科技集团公司第三研究所,北京100015

出　　处：《光学技术》2024年第2期215-219,共5页Optical Technique

摘　　要：针对机载光电侦察系统的目标定位问题,阐述了一种新的定位精度分析方法。推导了目标定位方程,采用一阶小量扰动法得到误差源与定位误差的传递关系,对定位误差进行定性分析,并得到姿态误差对目标基线矢量的投影是主要定位误差源的结论;进一步,基于蒙特卡罗仿真法,应用目标等概率空间遍历场景对定位误差进行定量分析,同时引入了固定场景法作为对比,结果显示,前者得到的定位误差更具有数值统计意义。该方法对于光电平台系统论证和性能提升具有重要意义。A new error analysis method is proposed for target location of airborne optoelectronic reconnaissance systems.Firstly,the target positioning equation was derived,and next the relationship of the positioning error and error source is obtained with the first order small perturbation method,and then the positioning error is qualitative analyzed,and it is concluded that the projection of attitude error on the baseline vector of target is the main source of positioning error.Furthermore,the scenario analysis method is intruduced assuming that the probability of the target appearing in space is equal,and then the the positioning error is quantitatively analyzed with monte carlo simulation,moreover,fixed scene method was introduced as a comparison,the results show that the positioning error obtained by the former has more numerical statistical significance.It is of great significance for the system demonstration and performance improvement of the photoelectric platform with this method.

关 键 词：目标定位 光电平台 蒙特卡罗仿真 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]