基于GAMIT-北斗的基线解算方法与实践
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摘要
随着我国北斗事业的逐渐成型,北斗卫星系统已渐渐融入生活中,使用北斗卫星高精度导航定位成为未来几年的研究重点。简要介绍Ubuntu系统平台的虚拟机搭建,详细阐述基于Ubuntu系统的GAMIT软件安装时的环境配置、安装流程以及路径设置,最后使用最新版本GAMIT/GLOBK10.61软件对多模GNSS实验跟踪网MGEX项目数据进行GAMIT北斗基线解算实现,通过GAMIT-北斗基线解算与GAMIT-GPS的基线解算的多方面对比分析。结果表明,GNSS接收机收到的可见北斗卫星的个数、分布和空间结构都不如GPS,进而导致GAMIT-北斗的基线解算质量略低与GAMIT-GPS的基线解算质量。
With the gradual formation of the Beidou business in China,the Beidou satellite system has gradually been integrated into life.The use of Beidou satellite high-precision navigation and positioning has become the focus of research in the next few years.This paper briefly introduces the virtual machine construction of Ubuntu system platform,elaborates the environment configuration,installation process and path setting of GAMIT software installation based on Ubuntu system,and finally uses the latest version of GAMIT/GLOBK10.61 software for multi-mode GNSS experiment tracking network.The MGEX project data is implemented in the GAMIT-BDS baseline solution,and the GAMIT-BDS baseline solution is compared with the GAMIT-GPS baseline solution.The result shows that the number,distribution and spatial structure of visible Beidou satellites received by GNSS receivers are not as good as those of GPS,which leads to a slightly lower baseline quality of GAMIT-BDS and a baseline solution quality of GAMIT-GPS.
With the gradual formation of the Beidou business in China,the Beidou satellite system has gradually been integrated into life.The use of Beidou satellite high-precision navigation and positioning has become the focus of research in the next few years.This paper briefly introduces the virtual machine construction of Ubuntu system platform,elaborates the environment configuration,installation process and path setting of GAMIT software installation based on Ubuntu system,and finally uses the latest version of GAMIT/GLOBK10.61 software for multi-mode GNSS experiment tracking network.The MGEX project data is implemented in the GAMIT-BDS baseline solution,and the GAMIT-BDS baseline solution is compared with the GAMIT-GPS baseline solution.The result shows that the number,distribution and spatial structure of visible Beidou satellites received by GNSS receivers are not as good as those of GPS,which leads to a slightly lower baseline quality of GAMIT-BDS and a baseline solution quality of GAMIT-GPS.
引文
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[2]HERRING T A,KING R W,MCLUSKY S C.Gamit Reference Manual,Release 10.6[R].Massachusetts Institute of Technology at Australia Nationnal University.USA:MIT,2015.
[3]鄂栋臣,詹必伟,姜卫平,等.应用GAMIT/GLOBK软件进行高精度GPS数据处理[J].极地研究,2005(3):173-182.
[4]王录爽,李森.双系统平台下GAMIT/GLOBK10.60安装与使用[J].全球定位系统,2017,42(2):113-116.
[5]赵国强,任雳.基于GAMIT/GLOBK的GPS数据处理平台搭建[J/OL].测绘地理信息,2016,41(1):37-42.
[6]郭际明,周命端,吴迪军,等.高精度GPS大型桥梁工程控制网数据处理与质量评估方法研究[J].测绘通报,2012(2):18-22.