椭圆轨道卫星空间任意位置悬停的方法

对任务星施加持续的控制加速度,使其在飞行过程中相对于目标卫星的空间位置保持不变,即实现任意位置悬停飞行。通过对任务星与目标星的相对运行分析和重力差异补偿分析，给出了在飞行过程中任务星相对于运行在椭圆轨道上的目标星实现任意位置悬停所需的径向、切向和法向控制加速度公式。最后对典型悬停飞行过程进行了动力学仿真，并对不同悬停飞行任务的能量消耗进行了对比分析，表明在一段时间内对任务星进行轨道悬停是可行的。

Hovering Method at Any Selected Position over Space Target on Elliptical Orbit

By implementing a continuous control acceleration, the relative position of a mission satellite to a target satellite can keep fixed during the mission. So the hovering flying at any selected position over a satellite on elliptical orbit is carried out. The relative motion was studied and the gravitation between the two satellites was researched. The formulae for radial, tangential and normal control acceleration required during the hovering flying mission were put forward. The numerical simulation for typical mission was conducted, and the energy requirements of the hovering spacecraft for different tasks were compared and analyzed. The results show that it is feasible to hover over a special target satellite within a period of time.