中文摘要：

高轨光学监视平台具有获取高轨空间目标态势信息的优势。本文主要研究基于高轨光学监视平台的空间目标的改进轨道确定算法和精度评定方法，分析了高轨光学监视平台对高、中、低轨三类典型空间目标的定轨精度，用观测值残差和估计参数协方差两种方法对定轨精度进行评定，并讨论光学观测误差对定轨结果的影响。通过仿真实验可以得出，高轨光学监视平台对这三类空间目标的定轨误差都在千米级，观测系统误差是定轨误差的主要来源。

英文摘要：

High-orbit optical surveillance platform has advantages accepting state information of space-objects. The orbit determination theory for space objects and its precision assessment methods by high-orbit optics surveillance platform were analyzed. The accuracy of three kinds of space objects based on high-orbit optics surveillance platform was studied. The orbit determination accuracy was assessed by two methods of observation residuals and results＇ covariance and the reliability of results was demonstrated and the effects of orbit determination caused by the error in the measurement were studied. Simulation experiment shows that the orbit determination precision for those space objects reaches kilometer level. System error is the main source of orbit determination errors.