摘要
分析了ATP跟瞄相机的探测采样频率、闭环信号延时对ATP系统带宽的影响,并在此基础上,提出了高采样频率和低闭环延时的高带宽设计思路,设计并实现了高带宽ATP跟踪系统。仿真分析和试验测试结果表明:使用该跟瞄相机的ATP系统的干扰抑制带宽约为200Hz;在给定的输入条件下,系统跟瞄精度优于±1urad,能够满足星地量子通信的需求。
A design of a high-bandwidth ATP camera is proposed, and the high-bandwidth ATP camera is designed and implemented. Simulation analysis and experimental test results show that: with the ATP camera, the ATP system has a interference rejection bandwidth of about 200Hz and an accuracy of 1μ rad under given conditions, meeting the needs of quantum communication between satellite and the ground.
出处
《光通信技术》
CSCD
北大核心
2010年第7期57-59,共3页
Optical Communication Technology
基金
空间尺度量子实验关键技术研究与验证实验(中国科学院知识创新工程重大项目
KGCX1-YW-16)资助
关键词
量子通信
跟踪相机
带宽
采样频率
信号延时
quantum communication, ATP camera, bandwidth, sample rate, signal delay