Vibration suppression in optical inter-satellite communications

Optical inter-satellite communications is a promising method in space-based communications. Optical communication transceiver is impacted by platform vibration and space environment as payload of satellite. This paper summarily explains the design requirement of acquisition, pointing and tracking system firstly, then presents the vibration of satellite and typical vibration's power spectral density. It also provides the feasible methods of vibration suppression and design methods of APT system. A tracking subsystem with composite axis control is designed. Finally, this paper uses simulation to verify vibration suppression performance of the designed system. Simulation results shows the efficiency of the designed system.