空间激光通信终端ATP技术与系统研究  

Research on ATP System Technology of Laser Communication Terminal in Space

作　　者：胡贞[1,2] 姜会林[1] 佟首峰[1] 宋正勋[1,2] 

机构地区：[1]长春理工大学空间光电技术研究所,吉林长春130022 [2]长春理工大学电子信息工程学院,吉林长春130022

出　　处：《兵工学报》2011年第6期752-757,共6页Acta Armamentarii

基　　金：国家863计划资助项目(2007AA0822)

摘　　要：为了提高某机载空间激光通信终端中捕获、跟踪、对准(ATP)系统的跟踪精度,提出了对该系统的改进方案并研制了样机。对光学接收单元、粗跟踪单元、精跟踪单元以及超前瞄准控制等单元进行了设计。建立了复合轴跟踪系统控制模型,对系统的跟踪控制性能进行了仿真研究。为了验证ATP系统校正粗跟踪残余误差的能力,在激光通信平台振动模拟实验台上进行了模拟实验。结果表明,ATP粗跟踪系统的控制带宽5.5 Hz,精跟踪系统的控制带宽350 Hz,跟踪误差小于2μrad,ATP系统的跟踪性能得到了提高。The improved acquisition,tracking,and pointing（ATP） system of the developed airborne laser communication terminal with high precision is presented.The optical antenna,coarse tracking assembly,fine tracking assembly,and point-ahead assembly in the ATP system are designed and the prototype is developed.The coarse tracking and the fine pointing control model of the compound-axis system is established and their performance is simulated.In order to further verity the error compensation ability of the ATP system,the experiments to reduce the pointing error are done in the platform vibration simulation system.The results show that if the control frequency bandwidth of the coarse tracking system for the ATP system is about 5.5Hz and that of the fine pointing system is about 350Hz,the pointing error is less than 2μrad.The performance of the ATP system is improved.

关 键 词：通信技术 空间激光通信 ATP系统 捕获 跟踪 对准 

分 类 号：TN929.1[电子电信—通信与信息系统]