GeomaticsandInformationScienceofWuhanUniversity Vol.39No.9 Sept.2014 DOI: /j.whugis : (2014) TurboEdit GP

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1 GeomaticsandInformationScienceofWuhanUniversity Vol.39No.9 Sept.204 DOI0.3203/j.whugis (204) TurboEdit GPS 2 ( ) TurboEdit GPS MW(Melborne-Wubbena) (phaseionosphericresidualpir) L TurboEdit GPS; ;MW; (PIR); ; P228.4 A (precisepointposi- tioningppp) [-3] PPP 30 min [4] TurboEdit MW GF [2] MW [5] [6] Kalman TurboEdit [7] [8] [9] TurboEdit. N w =φ - φ 2 -fp +P2 f + TurboEdit = N -N 2 +εw [0-2] Tur- φ φ 2 ;P P 2 boedit ;f ;λw MW ;λw=c/ ( f-f 2) 86cm;N N 2 ; (geometry-freegf) ;εw N w [3] [3] MW PIR () N w ( ) σn w 2 槡 + σp f + λw λw () (2) ( ); (423064); (4CX06073A) sdwzj@upc.edu.cn

2 P 0.3m 4σN w ) 2.2 GF L I =λ φ -λ2 φ 2 =d ion2 -d ion + (3) ^σdm = 2σ2 N w λn -λ2n 2 +εl I 槡 w 槡 2 w 0.83σP (8) λ λ2 ;d iono d iono2 ;εl I GF P I = P 2 -P =d ion2 -d ion +εp I (4) (9) εp I { P I() i }i=2 ( n) Q () i m = min ( n/00+ 6 )n ( L I-Q I) [4] ; ; [2] MW MW MW i 2.2 PIR MW L m F (i) m B () i σf () i σb () i Fish- er PIR PIR J() i = Fisher mf () i -m B () i (5) σ 2 F () i +σ 2 B () i φ IR = φ -f f 2 2 -f 2 ; εir m F () i m B () i σf () i i n σb(i); ΔN w () i = ΔN () i - ΔN 2 () i = n ΔN () i ΔN 2() i i ) d m () i = m F () i -m B () i -4σd m (6) d m () i >0.5 (6) σd m () i = ( σ2 F () i +σ 2 B () i ) w 槡 (7) 2) J () i ±int ( w/ 4 ) w 2) -4^σd m >0.5 (9) L f 2 2 φ2 = N -f dion +εir λ N 2 - PIR (0) ΔN IR() i = ΔN () i - f ΔN 2() i () ΔN IR() i = ΔN IR () i - f ΔN w () i =

3 39 9 TurboEdit GPS 09 -f ΔN () i 0.28ΔN () i (2) (2) L -f " φ IR = "N - f 2 2 -f 2 "dion f 2 2 λ " ( ) + "εir (3) 2);4 0 L {" φ IR(j)}(j=i-wi-w+ i- ) σi-i "^φir() i " φ IR() i - "^φir() i >4σi- (4) " φ IR ( i+ )- "^φir ( i+ ) >4σi- (5) " φ IR ( i+ ) " φ IR() i >0 (6) ; 5s L " L 2 C φ IR() i >0.28/ ( ti () -ti- ( )-4σi- P (7) 2 PRN t (7) ( w=6~25 ) Tur- boedit ; TurboEdit 7 / ) int((w+)/2) Tab. SituationofCycle-SlipsSimulation/cycle PIR 2) - 0 int((w+)/2) 3) PIR ;2 2);3 L L L MW 2 Fisher Fig. DistanceBetweentheAverageofMWin Fig.2 ChangeofFisherFunctionValue Backward WindowandForward Window

4 MW ) 5 PIR ( (6) ) Fisher (7) (2 4 3 PIR Fig.3 First-OrderDiferenceQuotientofPIR Moving Window [2] YeShirong.TheoryandItsRealizationofGPSPre- [3] GeMGendtGRothacherMetal.Resolutionof TurboEdit GPSCarrier-PhaseAmbiguitiesinPrecisePointPo- GPS sitioning (PPP)withDailyObservations[J].Jour- MW nalof Geodesy200882(7) Fisher [4] BisnathSGao Y.CurrentStateofPrecisePoint Positioningand Future Prospectsand Limitations PIR [M].BerlinHeidelbergSpringer2008 [5] LichteneggerHHofmann-WelenhofB.GPSData PreprocessingforCycle-SlipDetection[C].Interna- (54) tional Association of () Geodesy SymposiumScot- land989 [6] He HaiboYang Yuanxi.Detection ofsuccessive [] ZumbergeJFHeflin M BJefersonD Cetal. PrecisepointPositioningfortheEficientandRobust Analysisof GPS Datafrom Large Networks[J]. Journalof GeophysicalResearch99702(B3) cisepointpositioning Using Un-diferenced Phase Observation[D].WuhanWuhan University2002 (.GPS [D]. 2002) CycleClipsforGPSKinematicPositioning[J].Acta GeodaeticaetCartographica Sinica99928(3) (.GPS [J] (3)99-204) [7] Blewit G. An Automatic Editing Algorithm for GPSData[J].GeophysicalResearch Leters990 7(3) [8] CaiChangshengGaoJingxiang.CycleSlipDetec- tionandcorrectionofgpsdataby WaveletTrans-

5 39 9 TurboEdit GPS 02 form[j].geomaticsand Information Scienceof Wuhan University200732()39-42( ()39-42) [9] BahramiMZiebart M.InstantaneousDoppler-Ai- dedrtkpositioningwithsinglefrequencyreceiv- ers[c].positionlocationandnavigationsymposi- umcausa200 [0] WuJizhongShiChuangFangRongxin.Improving proachturboedit[j].geomaticsandinformation Scienceof Wuhan University2036 ()29-33 (.TurboEdit GPS[4] Wang WeiWangJiexianGaoJunqiang.CycleSlip [J]. 2036()29-33) []LiuZ.A New AutomatedCycleSlipDetectionand thesingle Station Data Cycle Slip Detection Ap- RepairMethodforaSingleDual-frequencyGPSRe- ceiver[j].journalof Geodesy2085(3)7-83 [2]ZhangShunYaoYibinChenPengetal.Research oncycleslipdetection MethodsforUn-diferenced ics20232()0-04(. GPS [J] ()0-04) [3]ZhengZuoyaChengZongyiHuangChengetal. ImprovingofCycleSlipDetectionandCorrectionof Blewit Method [J].Acta Astronomica Sinica (2)26-224(. Blewit [J] (2)26-224) tion Scienceof Wuhan University20035(6) (.GPS [J] (6) ) AnImprovedCycleSlipDetectionBasedonTurboEdit MethodforDual-frequencyGPSReceiver WANGZhenjie NIE Zhixi OU Jikun 2 SchoolofGeosciencesChinaUniversityofPetroleumQingdao China 2 StateKeyLaboratoryofGeodesyandEarth sdynamicsinstituteofgeodesy & GeophysicsofCASWuhan China.GPS [J]. GPSData[J].Journalof Geodesy and Geodynam- DetectionofGPSData[J].GeomaticsandInforma- AbstractConsideringthelimitationsofTurboEditanimprovedcycle-slipdetection methodnamed thetwo-stepmethodisproposedfordual-frequencygpsreceivers.firstlythenew methoddetects wide-lanecycleslipsbasedontestvaluescomputedfromaforward-backwardmovingwindowformw (Melborne-Wubbena)combinationobservationsandthendetectscycleslipsinthecarrierphaseL basedonthecheckconditionsextractedfromamovingwindowofthefirst-orderdiferencequotientof PIR (phaseionosphericresidual)combinationobservationswhichhavebeenremovedwide-lanecycle slips.theexperimentalresultsshowthatthenew methodcanefectivelysuppressnoiseandsuperior toturboeditfordetectingsmalcycleslips.itcanalsoexplorewhencycle-slipsexistinbothtwocar- rierphases. KeywordsGPS;cycle-slipdetection;MW ;PIR;two-stepmethod;movingwindow FirstauthorWANGZhenjieprofessorspecializesinsurveyingdataprocessing. sdwzj@upc.edu.cn FoundationsupportTheNationalNaturalScienceFoundationofChinaNos ;theStateKeyProgramof NationalNaturalScienceofChinaNo ;theFundamentalResearchFundsfortheCentralUniversitiesNo.4CX06073A.

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