非开普勒轨道下卫星交会变轨决策研究

The Study on Decision-making of the Maneuver in Satellite Orbits Based on Non-Keplerian

针对卫星在非开普勒轨道下的运动特征,提出了研究卫星交会变轨决策的方法。首先,在Hill坐标下,采用比例导引方法求解卫星进行变轨机动时所需要的速度增量。然后,再通过Lagrange插值算法解出卫星在任意特征点上变轨机动所需要的速度增量,根据数字仿真得出大量的仿真数据并画出满足变轨决策条件的决策曲面。最后,对决策曲面的涵义做出分析,说明了该方法对于研究非开普勒轨道下卫星变轨决策问题具有一定的意义。

According to the satellite motion characteristics in the non-Keplerian orbits, a new method is proposed to study the satellite orbit rendezvous decision. Firstly, in Hill coordinates, the proportional navigation method is used to solve the required velocity increment of the satellite for maneuvering. Secondly, the required velocity increment on any feature point of the satellite in orbit maneuver is solved by using Lagrange interpolation algorithm, and lots of simulation data can be obtained and the decision surface that meets the conditions for making decision can also be drawn. Finally, the analysis of decision surface meaning shows that the method has certain significance for studying the satellite decision-making in the non-Keplerian orbits.