我国卫星导航系统相关技术发展分析

Aug2006Vol24,No.4AerospaceControl*,210016卫星导航系统应用广泛,有利于促进国民经济的快速发展本文在介绍国内卫星导航系统及其国内市场状况基础上,结合北斗卫星导航相关产业发展趋势,从组合导航增强系统时钟同步和定向解算等方面分析了北斗卫星导航系统的技术成果,并讨论了有助于提高北斗卫星导航系统精度的相关辅助技术的发展情况最后结合我国国情和国内卫星导航系统相关技术特点,给出我国第二代卫星导航定位系统发展的若干建议北斗双星GPS伽利略无线电掩星罗兰C:V475.2:A:10063242(2006)04009106InterrelatedTechniquesDevelopmentsandAnalysisofChineseSatelliteNavigationSystemZengQinghuaLiuJianyePengWenmingYuYongjunNavigationResearchCenter,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,ChinaAbstractSatellitenavigationsystemsareusedextensively,andareprofitableforadvancingthenationaleconomy.Beidousatellitenavigationsystemanditsdomesticmarketareintroducedinthispaper.CombinedwiththedevelopmentsandtrendsofBeidousatellitenavigationsystem,sometechniquesofBeidousatellitenavigationsystemarediscussed,suchasintegratednavigation,enhancedsystem,clocksynchronizingandorientationresolving.Then,thedevelopmentsofsomerelationalassistanttechniquestoadvanceBeidousatellitenavigationsystemprecisionarediscussed.Accordingtothesituationofourcountryandthecharacteristicsofdomesticnavigationsystem,suggestionsareputforwardtoacceleratetheresearchofdomesticsecondgenerationsatellitenavigationsystem.KeywordsBeidoudoublestarGPSGalileoRadiooccultationLoranC*:20050818:(1979-),,,,;(1957-),,,,,;(1980-),,,,;(1982-),,,,190,,,!91!2006,,,22.12003525,,,2[1],,,,GPSGLONASS,2.2,,,,,,,,;C[2],(MIRV),[1]2.3[3],OmniTRACS,,1/101/8,30,50,,,,,,,,,3,,,,ITS,GIS,,2008,35,350,[4]:1);2),;3),;4)3,:GPSGLONASSGalileo,,,3,[5]!92!244:3.1,C,:;3;,,,[6];,,;SalychevOSINS//,(LPRAND-C)(RDSS)2,,C,[7]3.2,,,GPS:,,;,,,,[8],,2,,3412(20000km)9(36000km),20083.3GPS,,2,,,,203122008,,(),GPS,[9],3.4,2,,[10]∀∀∀2%,2m5min,0.01#!93!2006,,1,,3,,,,3,,4,2003[11],2004,3GPS,,,,4.1,,C:[12],,GPS,GPSC,C,C,,C,CCEurofixC,CDGPSGPSGPS,CUTC,,,,,,C,4.22000GPS,GPS,GPS(IGS),GPS,20022000GPSGPS,,GPS,,20042000GPS,[13]2000,,20003cm,,,4.3[14]:,,,;,;,;,Starfire,Inmarsat!94!244:DGPS76#76#15cm,99.99%,,L1+,,,,4.4,,,1,14:1);2);3);4),,,,,[8],,5,,,,,:,,,,,,TCAR(ThreeCarrierAmbiguityResolution)[15],,,,GPSC,,,,,,,,,,C,C,,C,,,,,C,2000,,3G,,,,,,!95!2006,,,,,,,,,,,,,[1].GPS∀[J].,2004.4,489:32-35.[2],,.C[J],,2005.1,23(1):1-5.[3],.[J],,2004.29(4):12-16.[4],.[J],,2004.9,29(9):775-778.[5]./[D].,2004.[6],,,.[J].,2005.1,26(1):107-111.[7],.RDSS/LORAN-C[J].,2005.2,25(1):18-21.[8],.[M].,2005.[9],,.[J].,2005.1,(62):48-52.[10],,.[J].,2004.1,24(1):66-73.[11].[J].,2005,(6):49-51.[12],,,,,.ASF[J].,2004.6,24(3):3-5.[13],[J].,2005,(1):6-9,52.[14]JosepMarcoPallars,GiulioRuffin,iandLeonardoRuffin.iIonosphericTomographyUsingGNSSReflections[J],IEEETransactionsonGeoscienceandRemoteSensing,2005.2,43(2):321-326.[15]ManuelHernndez-Pajares,J.MiguelJuanZornoza,JaumeSanzSubirana,andOscarL.Colombo.FeasibilityofWide-AreaSubdecimeterNavigationwithGALILEOandModernizedGPS[J].IEEETransactionsonGeoscienceandRemoteSensing,2003,41(9):2128-2131.(79)[1],.weibull[J].,1997(3):10-14.[2].Weibull[J].,2002(6):126-128.[3],,.[J].,2002(2):37-40.[4].Weibull[J].,2001(4):16-19.[5].[J].,2003(1):88-92.!96!