中国光学Issue(6)：988-996,9.DOI:10.3788/CO.20150806.0988
机载光电平台目标交会定位
Target localization with intersection measurement for airborne electro-optical platform
摘要
Abstract
Based on the principle of the intersection measurement,the mathematical model of measuring the target localization for airborne electro-optical platform(EOP)is established.Firstly,five coordinate systems are performed and transformations of different coordinate systems are given.Under the geocentric coordinate system,with the measurements of EOP pose angles,the aircraft position and the aircraft attitude,the mathe-matical expression of straight line segment between the EOP and the target point can be determined based on the transformation of coordinate system,some of which have been used to define an objective function of inter-section measurement.In order to estimate the geodetic coordinate of the target,least squares(LS)algorithm is used to minimize the objective function.The matrix equation about 3D geocentric coordinate of target can be computed to be determined,solving this matrix equation and transforming from geocentric coordinates system to geodetic coordinates system,and the estimate of the geodetic coordinates of the target can be obtained.Final-ly,the intersecting localization experiment is performed on a measurements sample.The result shows that the intersecting location is close to the true target location,the RMS of longitude is 0.65″,the RMS of latitude is 0.82″and the RMS of altitude is 5 m.This method is efficient and will be useful to localization of target for airborne EOP.关键词
机载光电平台/目标定位/交会测量/坐标变换Key words
Airborne electro-optical platform(EOP)/target localization/intersection measurement/coordinate transformation分类
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孙辉,李志强,张建华,韩松伟,宋玉龙..机载光电平台目标交会定位[J].中国光学,2015,(6):988-996,9.基金项目
国家重点基础研究发展计划（973计划）资助项目（No．2009CB72400607）；国家高技术研究发展计划（863计划）资助项目（No．2008AA121803） Supported by National Program on Key Basic Research Projects of China （No．2009CB72400607），National High-tech R＆D Program of China （）
