On-orbit manipulation technology for Spacecraft in GEO

Focusing on increasing space manipulating demands and orbital life extension application background for Spacecraft in GEO, the flight process is analysed firstly, which is followed by the process of relative attitude and orbit coupling dynamic modeling in super-close distance. In addition, the attitude-orbit coupling control law design is derived in details. Meanwhile, GEO spacecraft featuring apogee engine fixed in their sky-facing surface, the image-based non-cooperative target feature recognition, extraction and relative measuring algorithm are researched. Finally, by means of distributed simulation system construction and small capturing-docking facility, we execute super-close relative navigation and relative motion control ground test, in order to validate the feasibility of this orbital extension scheme achieved via capturing the apogee engine nozzle of GEO spacecraft.