1、河海大學碩士學位論文GPS非差相位精密單點定位方法與實現(xiàn)姓名：劉精攀申請學位級別：碩士專業(yè)：大地測量學與測量工程指導教師：蘭孝奇20070501AbstractPrecisePointPositioning(PPP)USeSan—differenceddualfrequencypsedorangeandcarrierphaseobservationsalong、^，itIIIGSpreciseorbitandsatelliteclock

2、sforsatand—aloneprecisegeodeticpointpositioning(staticorkinematic)withcentimeterprecisionThispaperdescribestheapproachofPPPindetailanddiscussessonicproblemsindataprocessingThemaincontentsandconclusionsofthispaperate嬲foll

3、ows：1ThethesisadoptsChebyshevpolynomialandlagelarypolynomialtoworkoutsatellitecoordinatesandclockerrorattheobservationtimeTheaccuracyofsatellitecoordinatesreachescentimeterandtheaccuracyofsatelliteclockerrorcorrectionrea

4、chessubnimsecond2Thethesisdoesresearchesonthreekindsoftheun—dfferencodpositioningmodel，suchasthetraditionalmodel，theUofCmodelandthenonambiguitymodelThethesisstudiestheerrorsandthewaystoeliminateorweakenthem3Thekalmanfilt

5、eringandtheleastsquarealestudiedTheleastsquareisjustsuitableforprocessingtheGPSdataaftertheeventThekalmanfilteringismoresuitableforprocessingtheGPSdatadynamically4ThethesisstudiestherandomwalktomodelthetroposphereerrorTh

6、ereceivereloekismodeledaswhitenoise5PretreatingtheGPSdatainthePPPisstudiedItinvolvescycleslipsdetectingandremoving，ambiguityfixingandSOonItisveryimportantforthePPE6ThePPPsoftisdevelopedSeveraldatasetsoflGStrackingstatiom

7、atecomputedTheresultsshowthataftertheinitialtimeofPPPtheaccuraciesofserialepochpositioningCanbebetterthanO5mKeywords：PrecisePointPositioning(PPP)，preciseephemeris，precisesatelliteclockerroran—differencedphase，cycleslipsn