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TGO在RTK放样成果检核中的应用.docx

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TGO在RTK放样成果检核中的应用 Title:ApplicationofTGOinQualityControlofRTKStakeoutSurvey Introduction: Real-TimeKinematic(RTK)surveyinghasbecomeanessentialtoolinmodernsurveyingandconstructionprojects.Itallowsforhighlyaccuratemeasurementsandprovidesreal-timepositioningdata,vitalfortaskssuchasstakeoutsurveys.However,ensuringthequalityandreliabilityofRTKstakeoutresultsiscriticalforthesuccessofanyconstructionproject.ThispaperaimstoexploretheapplicationofTotalGoodnessofFit(TGO)inthequalitycontrolofRTKstakeoutsurveying,highlightingitsbenefitsandpotentialchallenges. 1.RTKStakeoutSurvey: RTKstakeoutsurveyinvolvestheprocessofplacingpointsonthegroundaccordingtodesignplans.Theaccuracyandprecisionofstakeoutpointsarecrucialfactorsindeterminingthesuccessofconstructionprojects.RTKtechnologyintegratesGPSorGNSSsignalswithabasestationandarover,providingreal-timecentimeter-levelaccuracyinpositioning. 2.QualityControlChallenges: DespitetheadvantagesofRTKtechnology,severalchallengesneedtobeaddressedtoensurethequalityofstakeoutsurveyresults.Thesechallengesincludeerrorsduetoatmosphericconditions,multipathinterference,impropercalibration,andhumanerrorsduringdatacollectionandprocessing.Thus,implementingarobustqualitycontrolmethodisnecessarytoidentifyandrectifyanyissuespromptly. 3.TotalGoodnessofFit(TGO)Method: TGOisastatisticalmeasurementusedtoevaluatethegoodnessoffitbetweenobservedcoordinatesandreferencecoordinates.Themethodconsidersboththehorizontalandverticalcomponents,assessingtheoverallqualityofthesurveymeasurements.Byanalyzingtheresiduals,TGOprovidesaquantitativemeasureoftheaccuracyandreliabilityofthestakeoutsurvey. 4.ApplicationofTGOinRTKStakeoutSurvey: a)DataCollection:Duringthestakeoutsurvey,therovercollectsaseriesofpointcoordinates.Thesecoordinatesarethencomparedtothereferencecoordinatesobtainedfromdesignplansorcontrolpoints.Theresidualsbetweentheobservedandreferencecoordinatesarecalculatedforeachpoint. b)TGOCalculation:Usingthecollectedresiduals,TGOiscomputedtoassessthefitbetweentheobservedan