Analysis of Observability in Autonomous Navigation System of Rounding Lunar Probe
Autonomous celestial navigation system is absolutely independent. In this paper, an autonomous orbit determination system based on two angles and selenocentric distance is studied. One angle is between the lines of sight to a star and selenocentric direction, and the other is between the lines of sight to the sun and selenocentric direction. An advanced observable degree analysis method defined by the spectral radius is presented based on the nonlinear system. And the relationship between the observable degree and the accuracy of the system is proved. The simulation shows that the improved method is feasible.
Autonomous Celestial Navigation Observable Degree Error Covariance Matriz Spectral Norm
Liu Ping Wang Dayi
National Laboratory Of Space Intelligent Control,Beijing 10080 Beijing Institute Of Control Engineering, Beijing 10080
国际会议
The 11th International Space Conference of Pacific-basin Societies(第11届环太平洋国际航天会议)
北京
英文
685-690
2007-05-16（万方平台首次上网日期，不代表论文的发表时间）