Abstract:

According to on-orbit service mission objects of geostationary satellites(GEO), an autonomous, cooperative and multitask formation space robotic system is presented. Firstly, based on orbit character and information interaction character of the non-cooperative target, the formation space robotic system composed of an operation space robot and a monitor space robot is proposed to deal with the problems of weak gravity and non-cooperative target. The relative measurement subsystem of the formation space robotic system is designed. The flight missions of on-orbit service for the non-cooperative target are programmed. Secondly, the multiple line-of-sight relative navigation method and multiple impulse guidance law are proposed. Lastly, a typical far range rendezvous is simulated to verify the validity of the formation system.

Key words: Formation, Space robot, Non-cooperative target, Rendezvous, Geostationary orbit(GEO)