Application of Sparse Observations from Space-based Radar in Orbit Determination

摘要：

The space-based radar would only obtain one single set of observations which is quite different from the continuous tracking arcs by the ground-based one. And these sparse measurements can be used to update the spacecraft state vector. Before the application of the Extended Kalman Filter the position and velocity of the updating point and the covariance matrix is propagated by Matrix Ricatti equation. Then one design of the space-based space surveillance made up of the radar constellation is given. The simulation shows that the space-based observations can suppress the error divergence efficiently and keep the high accuracy of the orbit determination.

关键词： Space-based Radar Sparse Observations Orbit Determination Covariance Matriz

作者: Han Lei Ma Zhihao

作者单位: College of Aerospace and Material Engineering, National University of Defense Technology, Changsha, Hunan 410073, China

会议类型: 国际会议

会议名称: The 11th International Space Conference of Pacific-basin Societies(第11届环太平洋国际航天会议)

会议地点: 北京

会议语种:英文

页码: 15-20

在线出版日期: 2007-05-16（万方平台首次上网日期，不代表论文的发表时间）