A robust control method of lunar orbit spacecraft autonomous rendezvous

The lunar orbital rendezvous is a key technique of lunar return mission. In this paper, the C-W relative dynamic model is established. The virtual target trajectory was segmented designed, allowing the chaser remain at the docking corridor. The H∞ sub-optimal theory was applied in controller design, restraining the interference and over much energy consumption. The mathematical simulation showed that the proposed control method have advantages of high-accuracy, low power consumption, strong robustness and rapidity. Finally, the real-time visualization platform was established to demonstrate the whole process of lunar orbit spacecraft autonomous rendezvous mission.