SBAS电文认证技术综述  

Review of SBAS authentication techniques

作　　者：宋姜瑶 陈潇 刘婷 吴忠望 SONG Jiangyao;CHEN Xiao;LIU Ting;WU Zhongwang(Space Engineering University,Beijing 101416,China;Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China)

机构地区：[1]航天工程大学,北京101416 [2]中国科学院空天信息创新研究院,北京100094

出　　处：《全球定位系统》2024年第5期54-64,共11页Gnss World of China

基　　金：北斗星基增强系统民用服务平台。

摘　　要：卫星导航欺骗信号是卫星导航系统服务的重要威胁之一,严重影响导航、定位、授时(positioning,navigating,timing,PNT)服务,如何提升导航系统服务的安全性,已成为卫星导航服务亟待解决的问题.卫星导航信号认证是卫星导航系统端提升民用信号防欺骗的新兴技术手段,也是目前各大卫星导航系统的重要发展方向和研究热点.星基增强系统(Satellite-Based Augmentation System,SBAS)作为卫星导航系统的核心增强系统,目前正在国际民航组织(International Civil Aviation Organization,ICAO)框架下推进SBAS电文认证标准,以期在未来提供SBAS电文认证服务.伴随着我国北斗星基增强系统(BeiDou Satellite-Based Augmentation System,BDSBAS)建设完成以及下一代北斗导航系统的设计与研制,BDSBAS需要考虑在ICAO下提供SBAS电文认证服务,为用户提供更加安全可信的PNT服务.本文首先阐述了SBAS电文认证概念,然后梳理了SBAS电文认证发展历程,进一步分析了SBAS电文认证技术面临的热点问题,以期为BDSBAS电文认证服务设计提供技术支撑.In response to the threat of vulnerability of satellite navigation systems to spoofing,which will seriously affect the impact of navigation,positioning and timing services.How to enhance the security of navigation system services has become one of the issues that need to be addressed in satellite navigation services.Satellite navigation signal authentication is an emerging technical means to enhance civil signal antispoofing in satellite navigation systems,and it is also one of the important development directions and research hotspots of major satellite navigation systems at present.As the core augmentation system of the satellite navigation system,the satellite-based augmentation system(SBAS)system is currently promoting the SBAS message authentication standard under the framework of the International Civil Aviation Organization(ICAO)with a view to providing SBAS message authentication service in the future.Along with the completion of the construction of China’s BeiDou satellite-based augmentation system and the design and development of the next-generation BeiDou navigation system,the BeiDou satellite-based augmentation system needs to consider the provision of SBAS message authentication services under the framework of ICAO standards,in order to provide users with more secure and trustworthy PNT services.This paper firstly elaborates on the concept of SBAS message authentication,then combs through the development history of SBAS message authentication,and then analyzes the hot issues faced by SBAS message authentication technology,which will provide technical support for the subsequent message authentication service of BeiDou satellite-based augmentation system.

关 键 词：星基增强系统(SBAS) 电文认证 抗欺骗 北斗星基增强系统(BDSBAS) 时间效应流丢失容错认证机制 

分 类 号：P228.4[天文地球—大地测量学与测量工程] TN972[天文地球—测绘科学与技术]