航天器工程2012，Vol.21Issue(5)：37-42,6.
月球探测器定轨误差分量协方差分析
Covariance Analysis of Orbit-determination Error Components for Lunar Probe
摘要
Abstract
Based on measurement models of the tracking data including ranging, range rate, inter- ferometric delay and delay rate, the information array of lunar probe's state vector is presented. Error equations and covariance matrixes for RTN components of orbit-determination error are de- rived. The numerical relation between RTN components of error and the measurement accuracy are calculated for lunar orbit. According to measurement error and station/baseline distribution in the China lunar exploration program, the influence and level of error factors are analyzed and calcu- lated for RTN components of errors in the position and velocity for various lunar orbits. The or- bit-determination results using measurement data of Chang'e-1 and Chang'e-2 probes validate this analysis method, which will be as an important reference for RTN components of errors in the lunar decent initial orbit in the second phase of China lunar exploration program.关键词
月球探测器/误差RTN分量/信息阵/协方差分析Key words
lunar probe/RTN component of error/information array/covariance analysis分类
航空航天引用本文复制引用
樊敏,董光亮,郝万宏,王宏..月球探测器定轨误差分量协方差分析[J].航天器工程,2012,21(5):37-42,6.基金项目
探月工程专项研究 （）
