25526.基于相位偏差改正的ppp單差模糊度快速解算問題研究

1、東南大學(xué)博士學(xué)位論文基于相位偏差改正的PPP單差模糊度快速解算問題研究姓名：趙興旺申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：儀器科學(xué)與技術(shù)指導(dǎo)教師：王慶20111011東南大學(xué)博士學(xué)位論文ABSTRACTRealtimePrecisePointPositioningisahi曲precisionsatellitepositioningtechnologybaSedonreleVaIltp娥吼etersinstate—spacedomainItsimple

2、mentati嘰WiUgreatlyenhancetheoperationalnexibili鑼ofpositioningbyGPS，withwideIyengineering印plicationsHoweVer，t：heuncalibratedphaSebiaSesoriginatinginthereceiVers鋤dsatellitespreVenttheintegerambiguityresolutionofPrecisePoin

3、tPositiomngAndtraditionalPPPwithnoatamb追uityhaSslowconver2enceandtheaccuracyisalsolo、verthaIlt11eNet、Ⅳ0rkRTKTherefore，howefI’ectivelytocorrectthephasebiaLsandbuildtheStrategiesforPPP鋤b譫uityresolutionismekeyproblemsforrea

4、ltimePPPSo，meresearchesinthcdissertationaimtorapid鋤bi2uitVflxingforPPPcontributetotheconstnJctionofreal—timeprecisepointpositioningwith鋤biguit)rfixinginourcount哆Thedetailresearchesare嬲followCalculationmethodoftheFraction

5、alpartsofPhaSeBiases(FPBs)baSedontlletheo巧ofdirectionaldataSimilarto鋤bigu時(shí)脅ctionmethod，恤FPBswereseparatedfromtheph2LsebiaSesThen，thestatisticalhypothesisteStingtheorywasusedtotestthedistributionoftheFPBs，andtheresultssho

6、wedthatitwaSbettertoobey、，onMisesdistribution，whichwaSusedtodetenninethecalculationmethodoffractionalbiasesAnimpmvedestimatemethodforphaSebiaLseswasproposedInordertobettercorrectt11ephaSebiaSes，wefirstlyanalyzedtheefl’ec

7、tofphasebiaSesonsingledi療宅rence鋤biguity鋤dtherelationsllipbet、Ⅳeenionospheref托e鋤bigui夠andwidelane鋤bigui吼L1鋤biguityThenareversesingledi虢rencephaSebiasesmodelingw2usproposedbasedonpositionconstraintanddirectionalstatisticsU

8、singthosebiasestocorreCtmewidelaIleauldLlambiguity，theremaindercallbefixedt0anintegerThen，meionospherefke鋤bigui夠resolutioncanbecombinedbyfixedwide1aneandLl鋤bi星mityThercsultsshowedthatthereliabilitvofPPP鋤bigui付fixing謝thph

9、嬲ebiasescorrectioncanbetbreetimeshigherthanwithoutphasebiasescorrection，鋤dtheaccu】mcyofPPPfixedsolutioncaIlbeimprovedbyoneorderofma91litudeThePartialfixingmethodbasedonFAMinVaIld剛a)(SmethodwaSestablishedAimattIlelon2injt

10、ializingtimecausedbylackingobsevationinfo肌ationatthebeginIlingaJldlargeresidualerror，tllematbematicaJmodelofpartialfixingwaSderivatedbasedonLAMBDAmethod，andthentheoptimalsubsetselectionmetllodb2LsedonFAMinV鋤dFAMaxSwaSest

11、ablishedaccordingtothebasicideaof“memoreaccu】汜ayforthenoatsolution，theeaSierforrightfixing”，whichcouldfixtllemoSteasyt0fix鋤bigui鑼inshorttimeaIldobtainhighprecisePPPfixedsolutionDesigntheprotot)，peSystemofRealTimePPP麗thAm

12、biguityFiXing(RTP3wiAF)AccordingtotheresearchesofphaSebiasesestimationaIldpartial鋤biguit)rfixingiIlthedissertation，weproposedthedesignideaofRTP3一wiAFoveralIstmctureindetail，andtheda_tafieldsofSSRcoHectionsweredefinedbase

13、donRTCM31aIldBNCFinallyweanalVzedtherequirementofPPPsoRwareinuserte咖inalequipment，whichisusedtogetthePPPfixedsolutioninrealtimeKeywords：Satellitesatellitesingle—difrerencemodel，DirectionalstatiStics，PhaSebiaSes，Reverse鋤b