利用GAMIT研究北斗三号中、短基线解的精度  

Reserch on Accuracy of Medium and Short Baseline Solutions of Beidou-3 System Using GAMIT

作　　者：肖青怀 张景春 熊琦智 陈庆来[1,2] 张龙龙 刘一 GAMIT XIAO Qinghuai;ZHANG Jingchun;XIONG Qizhi;CHEN Qinglai;ZHANG Longlong;LIU Yi(Beijing Urban Construction Exploration&Surveying Design Research Institute Co.,Ltd.,Beijing 100101,China;Beijing Key Laboratory of Deep Foundation Pit Engineering for Urban Rail Transit,Beijing 100101,China;Navigation Engineering Department,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]北京城建勘测设计研究院有限责任公司,北京100101 [2]城市轨道交通深基坑岩土工程北京市重点实验室,北京100101 [3]海军工程大学导航工程教研室,湖北武汉430033

出　　处：《无线电工程》2023年第4期909-917,共9页Radio Engineering

基　　金：国家自然科学基金(42174051,41971416)。

摘　　要：为验证北斗三号系统在省级区域基线解的精度,以某省11个可观测到北斗全星座信号的测站,对BDS/GPS观测数据质量进行了分析,利用高精度GNSS解算软件GAMIT 10.75结合精密星历进行了分组解算。实验结果表明,GPS卫星较BDS卫星有更多的周跳,BDS全星座基线解内符合精度优于GPS系统,各方案基线相对精度均达到了10^(-8),方案之间基线解较差不超过12 mm,可满足工程控制网测量精度。In order to verify the accuracy of the Beidou-3 system’s baseline solution in a provincial-level region,11 stations that can observe the full Beidou constellation signals are selected in a province.Firstly,the quality of the BDS/GPS observation data is analyzed,and then the high-precision GNSS solution software GAMIT 10.75 is used to carry out the grouping solution combined with the precise ephemeris.The experimental results show that the GPS satellites have more cycle slips than the BDS satellites,and the BDS full constellation baseline solution has better coincidence accuracy than the GPS system,The baseline relative accuracy of each scheme has reached 10^(-8),and the baseline solution difference between the schemes is not more than 12 mm,which can meet the measurement accuracy of engineering control network.

关 键 词：GAMIT 北斗三号 中短基线 GPS 工程控制网 

分 类 号：P228[天文地球—大地测量学与测量工程]