Multi-GNSSRAIMavailabilityalgorithmsandanalysisforpreciseapproach

doi:10.16708/j.cnki.1000-758X.2016.0028

Chinese Space Science and Technology ›› 2016, Vol. 36 ›› Issue (3): 32-40.doi: 10.16708/j.cnki.1000-758X.2016.0028

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Multi-GNSSRAIMavailabilityalgorithmsandanalysisforpreciseapproach

JIANG Hu^1，2, YUAN Yun-Bin^1,*, WANG Hai-Tao¹, OUJi-Kun ¹, JIANG Zhen-Wei³

1StateKeyLaboratoryofGeodesyandEarth′sDynamic,InstituteofGeodesyandGeophysics,ChineseAcademyofScience,Wuhan430077,China
2UniversityofChineseAcademyofSciences,Beijing100049,China
3BeijingSpaceInformationRelayandTransmissionTechnologyResearchCenter,Beijing100094,China

Received:2015-12-25 Revised:2016-01-27 Published:2016-06-25 Online:2016-02-24

Abstract

Abstract: Withthecontinuousdevelopmentofglobalnavigationsatellitesystem(GNSS),thecombinedmulti-systemreceiverautonomousintegritymonitoring (RAIM)hasbeenanimportanttopicbasedonBDS/GPS/GLONASS/Galileo.ThealgorithmofMulti-GNSSRAIMavailabilitywasproposed,andtheavailabilityofacombinedmulti-systemRAIMbasedonsimulatednavigationephemerisofBDS/GalileoandactualnavigationephemerisofGPS/GLONASSwasanalyzedinpreciseapproachprocedures.Resultsshowthatfivegeosynchronousorbit(GEO)satellitesandthreeinclinedgeosynchronousorbits(IGSO)satellitesfromBDSmakeagreatcontributiontoRAIMavailability.TheeightsatellitesimprovethegeometrystructureoftheconstellationinthemostpartsofAsia,AfricaandEurope,andpromoteRAIMavailabilitygreatly.IntheAsia-Pacificregion,theRAIMavailabilityofBDSreaches99.5%,higherthanthatoftheotherthreenavigationsystematAPVIphase.Inpreciseapproachphases(APV-I,APV-IIandCAT-I),theintegratedBDS/GPS/Galileo/GLONASScanmeettherequirementsofRAIMavailabilityinaglobalscale.

Key words: globalnavigationsatellitesystem(GNSS), receiverautonomousintegritymonitoring(RAIM), preciseapproach(PA), geosynchronousorbit(GEO), inclinedgeosynchronousorbits(IGSO), availability

JIANG Hu, YUAN Yun-Bin, WANG Hai-Tao, OUJi-Kun , JIANG Zhen-Wei. Multi-GNSSRAIMavailabilityalgorithmsandanalysisforpreciseapproach[J]. Chinese Space Science and Technology, 2016, 36(3): 32-40.

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Multi-GNSSRAIMavailabilityalgorithmsandanalysisforpreciseapproach

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