国际星基增强系统综述  

Summarize of International Satellite Based Augmentation System

作　　者：邵搏[1] 耿永超[1] 丁群[1] 吴显兵[1] SHAO Bo;GENG Yongchao;DING Qun;WU Xianbing

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2017年第3期157-161,共5页Modern Navigation

摘　　要：由于单频技术体制的制约,现有星基增强系统均为到达一类精密进近性能指标的要求。为了满足航空用户对星基增强系统在精度、完好性、连续性和可用性上的要求,目前全球的星基增强系统都在开展由单频单系统向双频多系统的过渡,并成立了相应的工作组来制定双频多系统星基增强系统的定义文档和空间信号接口文档。同时,各星基增强系统也在着手准备地面系统的升级工作,计划在2020年前后提供初步的双频星基增强服务。我国为了推进北斗星基增强系统的国际化进程,已经启动了频率国际协调工作和国际化标准制定工作。Due to the restrict of the single frequency technical structure,the Satellite Based Augmentation System(SBAS)donot meet the requirements of the CAT-I.To satisfy the requirements of aviation users for accuracy,integrity,continuity andavailability,all of the SBASs are transmitting from single frequency single constellation to dual-frequency multi-constellation(DFMC).All the SBAS service providers create a working group to make the definition document and the interface control documentof the DFMC SBAS.Meanwhile,all of the SBASs are also preparing the upgrades of the ground stations,and plan to provide theDFMC SBAS service around2020.In order to promote the internationalization process of the BeiDou Satellite Based AugmentationSystem,the international coordination of GEO frequencies and international standard setting have already been started.

关 键 词：SBAS WAAS EGNOS MSAS GAGAN SDCM KASS BDSBAS 

分 类 号：TN96.1[电子电信—信号与信息处理]