摘要
量子导航定位系统需要借助于空间量子卫星信息通信系统来进行信号的捕获、跟踪和对准(acquisition,tracking and pointing,ATP).ATP系统是空间量子卫星信息通信的重要组成部分,涉及到量子通信链路的建立以及中断通信链路的恢复;粗跟踪和精跟踪的相互配合,可以确保通信双方处于通信状态,达到期望的信号跟踪性能.本文详细阐述用于量子导航定位系统的空间量子卫星通信的捕获阶段和粗跟踪的相关技术,重点分析捕获阶段中的初始指向技术、扫描技术、捕获阶段的精度及其性能,以及粗跟踪阶段的精度及其性能指标等关键技术.
Quantum navigation and positioning systems require a quantum-satellite information communi- cation system for signal acquisition, tracking, and pointing （ATP）. The ATP system is important for quantum-satellite information communication, which involves establishing a quantum communication link and resuming it. Cooperation between coarse and fine tracking can ensure that communication between the two parties attains the desired signal-tracking performance. In this paper, we describe in detail the acquisition phase and the coarse tracing technique of quantum-satellite communication for quantum navi- gation systems. The initial pointing technique, scanning technique, precision and performance of the capture phase are analyzed. Stage precision, its performance index, and other key technologies are also discussed.
出处
《空间控制技术与应用》
CSCD
北大核心
2017年第1期1-10,共10页
Aerospace Control and Application
基金
国家自然科学基金资助项目(61573330)
天地一体化信息技术国家重点实验室开放基金资助项目(2015_SGIIT_KFJJ_DH_04)
关键词
捕获
粗跟踪
量子导航
扫描
acquisition
coarse tracking
quantum navigation
scanning
