测距系统误差对环月卫星定轨精度的影响分析  

Analysis of Effects of Ranging Systematic Error on the Circumlunar Satellite Orbit Determination Accuracy

作　　者：李杰[1] 平劲松[2] 郑勇[1] 鄢建国[2] 黄勇[2] 

机构地区：[1]解放军信息工程大学测绘学院,河南郑州450052 [2]中国科学院上海天文台,上海200030

出　　处：《飞行器测控学报》2008年第3期39-43,共5页Journal of Spacecraft TT&C Technology

摘　　要：模拟了含有测距系统误差的环月卫星观测数据（基于假设的5个国内测控站），用上述仿真数据分别在无力学模型误差和有力学模型误差情况下确定该环月卫星的轨道，计算结果表明：①无力学模型误差时，测距系统误差对轨道径向影响较显著；②有力学模型误差时，观测误差的影响比力学模型对定轨结果影响小；③以上两种情况中，估计测距系统差都能提高定轨精度。The circumlunar satellite observed data containing ranging systematic errors have been simulated in this paper based on the assumption of five domestic TT＆C stations. The simulation data are used to determine the orbit of the same satellite under the conditions of the dynamic model with and without errors respectively. The computing results show： 1） Ranging biases decrease radial positioning accuracy more than other directions; 2） Ranging biases affect the orbit less with only measurement errors than with both measurement and force model errors. 3） Regarding range biases as parameters to estimate will improve the orbit determination accuracy in both experiment conditions.

关 键 词：测距系统差 环月卫星 精密定轨 

分 类 号：V476.3[航空宇航科学与技术—飞行器设计]