ARAIM算法在多星座中的全球可用性分析  

Global availability analysis of ARAIM algorithm in multiple constellations

作　　者：王崇宇 尹凯 李锐[1] 滕继涛 WANG Chongyu;YIN Kai;LI Rui;TENG Jitao(School of Electronic and Information Engineering,Beihang University,Beijing 100191,China;Troops 95899,Beijing 100085,China)

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191 [2]95899部队,北京100085

出　　处：《导航定位学报》2022年第3期101-109,共9页Journal of Navigation and Positioning

基　　金：国家重点研发计划项目(2020YFB0505602)。

摘　　要：先进接收机自主完好性监测(ARAIM)技术作为一种低成本、实时性强的完好性监测方法,受到广泛的关注。针对目前全球定位系统(GPS)、伽利略卫星导航系统(Galileo)在ARAIM互操作频点可用卫星不足,而北斗卫星导航系统(BDS)已经全面建成的现状,整理了GPS、Galileo与BDS符合星座承诺和实际情况的完好性支持消息(ISM)参数,分析了目前实际星座和未来标称星座下,三种星座的不同组合能够达到的ARAIM全球可用性覆盖率,给出一系列BDS关于ARAIM的发展与应用的建议。仿真结果表明,BDS在ARAIM应用中具有显著优势,在目前实际星座情况以及未来标称星座两种情况下,BDS和Galileo组合分别能达到100%和73.72%的全球可用性覆盖率。本建议也对BDS参与ARAIM标准制定、接收机设备研制以及BDS的推广应用具有参考意义。Advanced Receiver Autonomous Integrity Monitoring(ARAIM),as a low cost,high real-time integrity monitoring method,has been widely concerned.Global Positioning System(GPS)and Galileo navigation satellite system(Galileo)have not enough available satellites in ARAIM interoperable frequencies,while BeiDou navigation satellite System(BDS)has been built completely.According to this fact,this paper organized reasonable Integrity Support Message(ISM)parameters,which accord with the Open Service Performance Standard(OS PS)of GPS,Galileo and BDS,and analyzed ARAIM availability coverage of different GNSS combinations in the scenarios of the actual constellation and the nominal constellation.And it gives a series of BDS suggestions on the development and application of ARAIM.The simulation results indicated that the global availability in the scenario of BDS and Galileo is the highest both in the nominal constellation scenarios and actual constellation scenarios,respectively reaching 100%and 72.77%.This result indicated that BDS has a significant advantage in ARAIM application.The conclusion also has important reference value for BDS to participate in the formulation of ARAIM standard,the development of receiver equipment and the promotion and application of BDS.

关 键 词：先进接收机自主完好性监测 北斗卫星导航系统 伽利略卫星导航系统 全球定位系统 可用性 

分 类 号：P228[天文地球—大地测量学与测量工程]