三颗量子卫星组成的导航定位系统探讨  

Discussion on navigation and positioning system composed of three quantum satellites

作　　者：丛爽[1] 宋媛媛 尚伟伟[1] 陈鼎 CONG Shuang;SONG Yuanyuan;SHANG Weiwei;CHEN Ding(Department of Automation,University of Science and Technology of China,Hefei 230027,China;State Key Laboratory of Space-Ground Integrated Information Technology,Beijing Institute of Satellite Information Engineering,Beijing 100086,China)

机构地区：[1]中国科学技术大学自动化系,合肥230027 [2]北京卫星信息工程研究所天地一体化信息技术国家重点实验室,北京100086

出　　处：《导航定位学报》2019年第1期1-9,共9页Journal of Navigation and Positioning

基　　金：国家自然科学基金项目(61573330);天地一体化信息技术国家重点实验室开放基金项目(2015_SGIIT_KFJJ_DH_04)

摘　　要：为了进一步提高卫星导航定位的精度,提出一种由3颗量子卫星组成的量子导航定位系统:给出总体框架结构;并分别对其组成部件、作用及其工作的全过程进行详细研究,包括量子纠缠光源子系统,捕获、跟踪和瞄准子系统中的信标光模块、粗跟踪模块、精跟踪模块和超前瞄准模块,以及光子干涉测量子系统和信号处理子系统。研究结果表明,相对于现有的6颗量子卫星的导航定位系统设计方案,所提出的设计方案能够极大地减少所需要的卫星数量,因而更加节省实现的成本。In order to further improve the positioning accuracy of navigation satellites,the paper proposed a navigation and positioning system composed of three quantum satellites:the overall framework structure was given,and the components,functions and whole work processes of the system were studied in details,which included the quantum-entangled light source subsystem,the tracking optical module,the coarse tracking module,the fine tracking module and the leading sighting module of the acquisition tracking and pointing subsystem,the photon interference measurement subsystem and the signal processing subsystem.Results showed that,compared with the existing design scheme of the navigation and positioning system with six quantum satellites,the proposed method could greatly reduce the number of satellites needed for saving the cost of implementation.

关 键 词：量子导航定位系统 纠缠光源 捕获、跟踪和瞄准 干涉测量 到达时间差 

分 类 号：P228[天文地球—大地测量学与测量工程]