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1、摘要GPSRTK技术是GPS测量技术发展的一个新的突破，冃前己经能达到厘米级的精度，具有全天候、高精度、速度快等显著特点,在建筑业中已得到广泛应用，但是目前GPS-RTK技术(GPS实时动态定位技术)用于建筑轴线放样的还不多。本文主要对GPS(RTK)运用的基本原理、系统组成、误差来源进行分析，利用全站仪放样与RTK放样进行对比，GPS-RTK技术放样结果与GPS静态观测结果进行对比，证实了GPS-RTK技术放样建筑轴线的精度能够满足要求。本文就RTK的作业原理、基本配置及建筑轴线放样过程做了详细的阐述，并简要介绍了GPSRTK技术在建筑轴
2、线放样中的应用，说明GPS(RTK)的主要优缺点，对GPS(RTK)进行误差分析，了解现阶段GPS(RTK)能达到的放样精度。廿前GPS实时动态定位技术(RTK测量模式)，更是以实时、快速、操作简单而越来越受到测绘部门的青睐,但利用该技术对建筑轴线放样其精度能否满足测量要求，现有文献报道较少。木文通过实例，将RTK技术用于建筑轴线放样，证明了GPS-RTK技术在建筑轴线放样方面的可行性。关键词：GPS(RTK),误差来源，误差分析，建筑轴线，放样精度ABSTRACTGPSRTKtechniqueisanewbreakthroughinthe
3、developmentofGPStechnology,itiscanachievethecm-levelaccuracy,all-weather,highprecision,speedandothersignificantcharacteristics,hasbeenwidelyusedintheconstructionindustry,butthecurrentGPS-RTKtechnology(GPSreal-timedynamicpositioningtechnology)axisusedinconstructionloftingal
4、sonotmuch.ThispapermainlyontheuseoftheGPS(RTK)thebasicprinciple,systemcomposition,theerrorsourceswereanalyzed,andtheuseofGPS-RTKtechnologylofting,comparingtheresultswithGPSstaticobservationresultsconfirmedtheGPS-RTKtechnologyloftbuildingaxisprecisioncanmeettherequirements.
5、Inthispaper,thebasicconfigurationandworkprincipleofRTK,theaxisoftheconstructionloftingprocessindetail,andbrieflyintroducestheapplicationofGPSRTKtechniqueinbuildingaxislofting,illustratethemainadvantagesanddisadvantagesofGPS(RTK)，erroranalysisofGPS(RTK),understandthepresent
6、stagecanachievetheloftingprecisionofGPS(RTK).CurrentGPSreal-timedynamicpositioningtechnology(RTKmeasurementmode),butalsoinrealtime,fast,simpleoperationandmoreandmoregetthefavourofsurveyingandmappingdepartments,buttheuseofthetechnologyofbuildingaxisloftingitsprecisioncansat
7、isfythemeasurementrequirements,existingliteraturereportedless.Axisinthispaper,throughexamples,theRTKtechnologyusedinconstructionlofting,provedthatGPS-RTKtechnologyinthefeasibilityofconstructionloftingaxes.Keywords:GPS(RTK),Errorsources,Theerroranalysis.Buildingaxis,Lofting
8、precision目录摘要IABSTRACTII目录TTT1绪论11.1研究目的与意义11.2国内外现状11.3RTK放样技术的发展方向12GPS-RTK的定位原理32.1GPS
