摘要
随着全球导航卫星系统GNSS在导航、精密定位、大气监测、地震、现代测绘、授时等领域的广泛应用。多系统GNSS组合是一种发展趋势,在GNSS定位中数据的质量将会直接影响到定位的精度与可靠性,所以在进行GNSS定位之前有必要对观测的原始数据进行质量评定分析。本文结合TEQC和RTKLIB等软件对YNCORS数据分别从数据利用率、多路径误差、观测数据与周跳比、信噪比等相关指标对BDS系统、GLONASS系统、GPS系统进行了数据质量可视化分析。得出利用TEQC和RTKLIB进行GNSS数据质量分析具有操作简单、可视化好、分析全面,对GNSS定位的数据质量分析具有十分重要的意义。
With the wide application of GNSS in navigation,precision positioning,atmospheric monitoring,earthquake,modern surveying and mapping,time service and other fields.Multi system GNSS combination is a development trend.In GNSS positioning,the quality of data will directly affect the accuracy and reliability of positioning.Therefore,it is necessary to evaluate and analyze the quality of the observed original data before GNSS positioning.Combined with TEQC and RTKLIB software,this paper makes a visual analysis on the data quality of BDS system,GLONASS system and GPS system from the data utilization,multipath error,observation data and cycle slip ratio,signal-to-noise ratio and other relevant indexes.It is concluded that using TEQC and RTKLIB to analyze GNSS data quality has the advantages of simple operation,good visualization and comprehensive analysis,which is of great significance to the data quality analysis of GNSS positioning.
作者
张玉英
张东升
李国柱
邹盛
周应慧
Zhang Yuying;Zhang Dongsheng;Li Guozhu;ZouSheng;Zhou Yinghui(Yunnan saiweiya surveying and Mapping Technology Co.,Ltd.,Kunming 650000,China;HI-GIS Geographic Information Technology Co.,Ltd.,Kunming 650000,China;School of Geographcial Science and Tourism,Zhaotong University,Zhaotong 657000,China)
出处
《城市勘测》
2022年第3期76-79,83,共5页
Urban Geotechnical Investigation & Surveying
