摘要
针对目前多系统定位情况,本文基于IGS连续跟踪站组成的短基线,分析了GPS/BDS/GLONASS/Galileo四个系统单系统以及11种组合下的短基线相对定位精度。经研究发现,11种组合下短基线相对定位相比单系统有明显的提升,水平向精度优于0.8 cm,竖直向定位精度达到1 cm,同时发现随着系统组合数的增加,不仅定位精度有一定的提升,卫星可见数、PDOP值与模糊度固定率也有一定改善。
In view of the current multi-system positioning situation,based on the short baseline composed of IGS continuous tracking stations,the relative positioning accuracy of the short baseline under the four systems of GPS/BDS/GLONASS/Galileo and the 11 combinations are analyzed.The research found that the relative positioning of the short baseline under 11 combinations has been significantly improved compared with the single system.The horizontal accuracy is better than 0.8cm,and the vertical positioning accuracy reaches 1cm.The accuracy has been improved to a certain extent,and the satellite visible number,PDOP value and ambiguity fixation rate have also been improved.
作者
王鸣
Wang Ming(Shenyang Surveying and Mapping Research Institute Co.,Ltd.,Shenyang 110000,China)
出处
《城市勘测》
2020年第4期97-100,共4页
Urban Geotechnical Investigation & Surveying
关键词
多系统
组合
短基线
相对定位
multiple systems
combination
short baseline
relative positioning
