同平面LEO-LEO气动辅助空间交会

Coplanar LEO-LEO Aeroassisted Space Rendezvous

给出了实现同平面LEO-LEO空间交会的必要条件,分析了基于脉冲的主动调相方法,并重点研究了基于气动辅助轨道转移技术实现同平面LEO-LEO的空间交会方案。通过设计标准的同平面HEO-LEO气动辅助轨道转移最优轨迹,得到OTV与目标实现交会必须满足的标准相角,然后采用主动调相法使飞行器运行到高轨道时,恰好满足HEO-LEO气动辅助空间交会的标准相角,最后借助气动辅助轨道转移技术实现空间交会。该方法具有扩大发射窗口,且比基于脉冲主动调相法节省燃料等优点。

This paper presented the necessary conditions for coplanar space rendezvous, analyzed the active phasing method based on impulse and focused on studying the scheme how to realize coplanar LEO-LEO space rendezvous by applying aero-assisted orbital transfer technique. In this scheme, the standard phase angle for satisfying space rendezvous demand is determined through designing a standard optimal trajectory of coplanar HEO-LEO aero-assisted orbital transfer. Thereafter, the active phasing method is applied so that the standard phase angle could be obtained when OTV is transferred to HEO. Finally, space rendezvous is realized by implementing aero-assisted orbital transfer. The conclusions indicate that this method has the advantages of broadening launch window and saving fuels comparing with the active phasing method based on impulse.