摘要
提出一个由 4颗地球同步轨道卫星编队飞行组成区域性导航系统方案。采用精确描述相对运动的编队飞行运动学模型 ,设计编队飞行各卫星轨道参数。在考虑地球同步轨道主要摄动条件下 ,进行编队飞行队形变化动力学仿真。根据仿真结果 ,估算区域性导航精度在十米至二十米范围内。除此以外 ,还研究编队飞行位置保持控制策略和燃料消耗估算。这是至今为止在相同精度和相同覆盖区条件下卫星数量最少的 ,也是投资经费最低的导航系统方案。
This paper brings up a scheme of regional navigation system composed of four formation flying satellites in the earth-synchronous orbit. Based on the precision dynamics model of formation flying that describes the relative movement, each formation flying satellite orbit element is designed. With the main perturbation in the earth-synchronous orbit considered, the simulation for formation flying satellites dynamics is studied. The simulation results shows that regional navigation precision is in the range of ten meters - tens meters. In addition, the position maintenance control strategy and fuel use estimation are described. The proposed navigation system needs the least satellite number and the lowest investment under the same navigation accuracy and the same coverage conditions.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2004年第1期82-88,共7页
Journal of Astronautics
