DGPS-RTCM数据格式简介及其解码算法实现

ELECTRONICMEASUREMENTTECHNOLOGY3112200812DGPSRTCM112(1.100029;2.310053):GPS(DGPS)GPSDGPSRTCMSC2104,,,VC:GPS;GPS;RTCM;;VisualC++:TP242:AIntroductionanddecodingarithmetic&realizationofRTCMdataformatofDGPSLiSichao1YeTianchun1XuJianhua2(1.InstituteofMicroelectronicsofChineseAcademyofSciences,Beijing100029;2.HangzhouZhongkeMicroelectronicsCo.,Ltd,Hangzhou310053)Abstract:DifferentialGPS(DGPS)isaneffectiveapproachtoenhancetheprecisionofGPSsystem.ThepaperintroducesthedataformatofRTCMSC2104protocolbriefly,whichhasbeenappliedthroughouttheworld.Besides,thepaperproposesandrealizesanintegrateddecodingarithmetic.Throughthetestwiththepracticaldata,thearithmeticandVCprogramcandecodethedatacorrectly.Keywords:GPS;DGPS;RTCM;arithmetic;VisualC++0SPSGPS10m(95%),,,[122],,,DGPSDGPS,DGPS(WADGPS)DPGS(LADGPS)WADGPS,,WADGPSWAAS,EGNOS,MSAS,GAGANLADGPS10100km,1m,,,LADGPSTrimbleCMRRTCMSC2104CMR,;RTCMSC2104(RTCM)104(SC2104)DGPS,,,200182.3LADGPS,20042,RTCMDGPS,3.01RTCMSC210430,2530,1[324]:8bitID6bitID10bit6bit1Z13bit3bit5bit3bit6bit218bit,113101100110,6bit,63,1910bit,13bitZ,,0.6s,03599.4s,ZGPS3bit,,3bit,8,6(UDRE),2[5]1RTCM1DGPS2DGPS3GPS45GPS6GPS7DGPS89GPS2000,UDRE1001,UDRE0.75010,UDRE0.5011,UDRE0.3100,UDRE0.2101,UDRE0.1110111DGPS,19,1,112,,[627]:(1):1,0.32m0.032m/s;0,0.02m0.002m/s(2)UDRE:1,,3,2(3):DGPS(4):Z,[8](5)IOD:GPS,GPSIODE,31bitUDRE2bitID5bit16bit336bit(a)8bit8bit31bitUDRE2bitID5bit336bit(b)16bit8bit336bit(c)8bit31bitUDRE2bitID5bit8bit336bit(d)8bit8bit8bit336bit(e):333213100=1m011m=4m104m=8m118m2,,53DGPS,3,24,bit10102RTCM:(1)RTCM,6,78,71,80,64127,,21:DGPSRTCM12(2)UART,,RTCM,33,78(3)5RTCM,6,RTCMGPS,bitd3301,24d1d24;d3300,(4),(5)RTCM01100110,,,,,;,(6)RTCM,,;,,:RTCMd329d330RTCM24d1d24,d25d30,4[9],RTCM,44RTCM41234567891011121314151617181920212223242930251110110001111100110100101026011101100011111001101001012710111011000111110011010010280101110110001111100110100129101011101100011111001101013000101101111010100010011110:1.,,2930;2.1,03,VisualC++6.0SpirentGPSSTR4500,RTCMGPS,:597E7D7F717243517B4A40415E4665406C6F774F406448545042434E4069694340594B707D555A657649747373507F4B7B4D5854555575:01100110:1:0Z:3397.2:7:9:031315udre20038.88-0.0023241046.40.32677002.08-0.0022171400-27.72-0.2221891200-61.4-0.112245,554RTCMSC2104LADGPS,VisualC++GPS,RTCM[1],,,.DGPS[J].,2007,30(1):56258.[2],,.GPS[J].,2007,28(2):3172321.[3]SpecialCommittee104,RTCMRecom2mendedStandardsforDifferentialGNSS(GlobalNavigationSatelliteSystems)Service[S/OL].Version2.3,2001,[4]SpecialCommittee104,RTCMRecom2mendedStandardsforDifferentialGNSS(GlobalNavigationSatelliteSystems)Service[S/OL].Version3.0,2004,[5].GPS[D].:,2003:14.[6],,.GPSRTGM[J].,2004,24(2):1882191.[7],.GPS[J].,2004(3):1112115.[8]ENGEP,KALAFUSR,RUANEM.Differentialoperationoftheglobalpositioningsystem[J].IEEECommun.Mag.,1988,26(7):48260.[9],,.GPSRTCM[J].,2006(11):2092211.,,,GPSE2mail:[e-mail](,20081117),(NYSE:A)Anite(LSE:AIE),LTEUEAgilentE6620,3GPPLTE200711,AniteAniteSATLTESATLTE,,LTE,(GUI)API123,,,AgilentE6620A3GPP,LTEUELTE,L1/L2/L3,MIMOAnite,,UE,,AniteSATLTEAgilentE6620,://