Acquisition, Pointing, Tracking Technology and Its Development for Free-space Laser Communication

Acquisition, pointing and tracking-ATP technology is one of the key techniques of free-space laser communication system The architecture and main parameters of ATP system for free-space laser communications are analyzed and discussed in this paper America, Japan and Europe countries dominate the field of free-space laser communications, and their latest development of ATP technology is described by introducing its topic system、The feasibility of space laser communication is also proved.