DESIGN AND REALIZATION OF LASER BEAM ACQUISITION, POINTING AND TRACKING OF GROUND DEMONSTRATION SYSTEM FOR FREE SPACE OPTICAL COMMUNICATION

Free space optical communication is a viable and attractive approach to space-based communication in the future. Laser beam' s acqusition, pointing and tracking is one of key technologies of free space optical communication. This paper analyzes the designed ground demonstration system for free space optical communication. The structure of demonstration system, servo control system of APT and work flow of demonstration experiment are described in detail. It is presented the experiment results of demonstration system.