卫星编队飞行星间相对运动

Research on Relative Motion of Satellites Formation Flying

为分析编队卫星不同模型间的差异,分别根据动力学和运动学推导了星间相对运动的非线性、线性和相对轨道根数三种模型。以非线性相对运动模型为参考,在相同初始条件下比较各模型的位置误差。仿真结果表明:中心星在圆轨道或近圆轨道上运动时,三个模型结果相差较大。增大中心星轨道偏心率,可减小其位置误差。

The analysis the difference among different models for formation flying satellites, the three relative motion models of non-linear, linear and relative orbit elements were derived through dynamics and kinematics in this paper. The position different error obtained from the three models was compared under the same primary condition when the nonlinear model severed as the reference. The simulation results showed that the difference among three models was large when the primary satellite ran in a circle or near circle orbit. However, the position error among the models would be decreased when orbit eccentricity of the mother satellite increased.