交会对接光学成像敏感器光点布局求解有效性研究  

Research on the Target Pattern Solution Validity of Optical Imaging Sensor Used in RVD

作　　者：张昊[1] 解永春[1] 吴宏鑫[1] 

机构地区：[1]北京控制工程研究所,北京100190

出　　处：《航天控制》2008年第3期44-48,58,共6页Aerospace Control

基　　金：国家自然科学基金资助项目(90305024);国家重点基础研究发展计划资助项目(2002CB312205)

摘　　要：在自主交会对接的最后逼近段,CCD光学成像敏感器作为主要的导航敏感器,其测量的有效性直接关系到交会对接导航信息获取的准确性。目标标志器上的光点个数和光点布局是影响光学成像敏感器测量有效性的重要因素。本文首先给出四光点平面布局真伪解之间的转换关系,在此基础上对增加一个突出光点的五光点布局和增加两个突出光点的六光点布局求解的有效性进行理论分析,对四光点、五光点布局求解出现伪解的情况给出伪解判别条件和解决方法,并通过仿真验证了有效性。In the final approach phase of autonomous rendezvous and docking （ RVD）, CCD optical ima- ging sensor is the primary measurement sensor whose measurement validity determine the accuracy of RVD navigation information. The pattern of target is an important factor influencing the measurement validity. Firstly, this paper gives the relationship between the true and false solution solved by the four points coplanar pattern. Then the theoretical analyses of solution validity of stereo target pattern with five or six points are given respectively. When the false solution is solved by the four points coplanar pattern or five points stereo pattern, this paper gives a judgment condition and methods how to get the true solution. These results are validated by mathematical simulations.

关 键 词：交会对接 CCD光学成像敏感器 测量有效性 

分 类 号：TN379[电子电信—物理电子学] V448.2[航空宇航科学与技术—飞行器设计]