基于CMOS的量子通信精跟踪系统设计及检验  

Design and Performance of Fine Tracking System Based on CMOS for Quantum Communication

作　　者：张亮[1] 王建宇[1] 贾建军[1] 林俊仰[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《中国激光》2011年第2期175-179,共5页Chinese Journal of Lasers

基　　金：中国科学院知识创新工程重大项目(KGCX1-YW-16)资助课题

摘　　要：分析了量子通信中精跟踪系统的构成要素,由于量子通信中信标光的脉冲特性,提出以高帧频CMOS作为精跟踪探测器,其经一体化设计帧频达到2.5 kHz,并以压电陶瓷快速反射镜作为精跟踪执行机构。采用离散化设计及根轨迹方法分析了控制参数取值及系统传递函数。对实验系统进行了实验室及外场32 km车载平台测试,在实验室静态条件下系统跟踪精度优于±1μrad,外场动态情况下跟踪精度优于±8μrad,采用频谱分析方法验证了精跟踪系统干扰抑制带宽大于100 Hz。The component of fine tracking system for quantum communication is analyzed.The high frame CMOS detector is suit for fine tracking sensor because of the pulse beacon light and the frame rate up to 2.5 kHz by integrative design method.The piezo fast steering mirror is used for fine mechanism.The fine track control loop is analyzed by discrete design and root locus method,with the result of control parameters and system transfer function.The laboratory and outfield 32 km vehicle platform experimental tests are implemented.The accuracy is within ±1 μrad in the static state and ±8 μrad when the platform is moving.By frequency analysis,the disturbance rejection bandwidth is up to 100 Hz.

关 键 词：光学设计 量子通信 精跟踪系统 高帧频CMOS 离散化设计 车载平台 

分 类 号：O436[机械工程—光学工程]