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1、GPSRTK在数字地形图测绘中的应用GPSRTKSurveyingAndMappingintheDigitalTopographicMapoftheApplication摘要全球定位系统GPS全面建成和发展,使导航和测绘行业发生了一场重大深刻技术革命。GPS测量技术用于生产作业,其作业模式从静态测量、快速静态测量、后处理高精度动态测量、发展到动态初始化(OTF)厘米级实时RTK测量作业。RTK技术是GPS定位技术的一个新的里程碑,它不仅具有GPS技术的所有优点,而且可以实时获得观测结果及精度,大大地提高了作业效率,并开拓了GPS新的应用领域,给测绘工作
2、者带来了极大的方便。本文介绍了GPSRTK的发展历史、发展前景以及工作原理,并对徕卡GPSRTK在测量中的工作模式、数据链的结构、技术特点、作业步骤、点校正方法以及影响RTK成果精度因素等方面进行了讨论,同时进一步讨论了GPSRTK在数字地形图测绘应用中的控制测量、碎部测量等方面的应用。用双基站比较法进行精度分析研究出减小误差提高精度的方法.最后,通过具体工程实例证实了GPSRTK技术能大大提高工作效率、减轻劳动强度、成果质量可靠等优点。关键词:GPSRTK;图根控制测量;数字测图;原理;精度分析IIABSTRACTTheglobalpositioni
3、ngsystemGPScomprehensivelycompleteswiththedevelopment,causedthenavigationandthemappingprofessionhashadasignificantprofoundtechnologicalrevolution.TheGPSsurveytechnologyusesintoproducethework,itsworkpatternfromthestaticsurvey,thefaststaticsurvey,thepost-processinghighaccuracydyna
4、micsurvey,developstothedynamicinitialization(OTF)thecentimeterlevelreal-timeRTKsurveywork.TheRTKtechnologyisaGPSlocalizationtechnologynewmilestone,itnotonlyhastheGPStechnologyallmerits,moreovermayreal-timeobtaintheobservationresultandtheprecision,greatlyenhancedtheworkefficiency
5、,andhasdevelopedtheGPSnewapplicationdomain,forsurveyedanddrewtheworkertobringenormousconvenient.ThisarticleintroducedGPSRTKthedevelopmenthistory,theprospectsfordevelopmentaswellastheprincipleofwork,andtoLeicafrequencyGPSRTKinthesurveyworkingpattern,thedatachainstructure,thetechn
6、icalcharacteristic,GPSRTKtheworkstep,andsoonRTKachievementprecisionfactorhascarriedonthediscussion,simultaneouslyfurtherdiscussedGPSRTKintheapplicationofdigitalterrainmappingofthecontrolsurveyandsoontheaspectapplication.comparedwithtwo-baseprecisionanalysismethoddevelopedtoreduc
7、etheerrortoimprovetheaccuracyofthemethodprovedGPSthroughtheconcreteprojectexampleRTKthetechnologytobeablegreatlytoenhancetheworkingefficiency,toreducethelaborintensity,theachievementqualityisreliableandsoonthemerit.Keyword:GPSRTK;MappingControlSurvey;LayOut;DigitalMapping;Princi
8、ple;AccuracyAnalysisII目录摘要IAbstractII第1章绪论11.1论