Space Optical Communication In The Atp System Analysis And Research

The space optical communication, which has the advantage of wide bandwidth, high data rate, good secrecy and lower power consumption, is becoming a new direction of communication. Many countries attach import attention to the research of the space optical communication. But it leads to many technology problems in the beam pointing because of the narrow laser beam. So the research on acquisition, tracking and pointing (ATP) technology becomes especially important.Firstly, the significance of the optical communication research and the actuality of some countries' research are introduced in the paper, the foreground of its application and development trend are expounded, the importance and necessity of the research are also narrated.Secondly, the working principle of ATP is discussed, and ATP main parameters are introduced. The detector is analyzed and ATP's error is deduced in detail..Thirdly, a fine pointing part and a coarse pointing part are discussed; and simulation with MATLAB is effective and reasonable.