分布式InSAR卫星绕飞角设计与控制方法研究

Research on the Flying-Around Angle Design and Orbit Control for Distributed InSAR Satellites

针对分布式卫星绕飞轨道构型设计与控制问题,提出了基于Hill方程的绕飞构型设计算法,给出了绕飞角与升交点赤经偏差和轨道倾角偏差的关系,并分析了绕飞角的稳定性;根据分布式InSAR卫星绕飞构型特点提出了基于开普勒轨道实现特定绕飞角和绕飞半长轴的双层迭代轨道控制算法。仿真结果表明,上述方法设计的绕飞构型稳定,捕获控制策略简单可行、控制精度高,具有一定的工程参考价值。

The problem of flying-around configuration design and the orbit maneuver of the distributed InSAR satellites is studied. First, the algorithms of flying-around Configuration design based on Hill Function is put forward. Then the relationship between flying-around Angle and errors of RAAN and inclination is given. At the same tine, the stability of the flying-around angle is analyzed. Finally, according to the properties of flying-around configuration distributed satellites, the two-layer iterative strategy for in-orbit and out-orbit planes based on Keplerian elements is proposed. Simulation results show that the strategy of flying-around configuration design and the orbit control is effective and is applicable for engineering application.