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自由空间光通信是以激光为载波,以大气为传输媒质的新型通信技术。捕获、跟踪、瞄准(ATP)子系统是自由空间光通信系统的关键技术之一。给出了空间光通信系统中ATP子系统的原理,对由共轴双检测法组成的ATP系统进行了研究,建立了共轴双检测ATP试验系统。结果表明采用共轴双检测ATP系统能够提高系统精度和稳定性,跟踪精度比复合控制ATP系统有了明显提高。
Free space optical communication is a new type of communication technology that uses laser as a carrier and uses the atmosphere as a transmission medium. Capture, Tracking, Aiming (ATP) Subsystem is one of the key technologies of free space optical communication system. The principle of ATP subsystem in space optical communication system is given. The ATP system composed of coaxial double detection method is studied, and a coaxial double detection ATP test system is established. The results show that the coaxial double detection of ATP system can improve the system accuracy and stability, tracking accuracy than the composite control ATP system has been significantly improved.