GAMIT软件中不同星历对GPS/BDS数据定位的影响  

Position affect of GPS/BDS data by GAMIT with different precise ephemeris

作　　者：王丽红 鲁杨梅 邱宝贤 WANG Lihong;LU Yangmei;QIU Baoxian(61365 Troops,Tianjin 300142,China)

机构地区：[1]61365部队,天津300142

出　　处：《海洋测绘》2022年第1期14-17,共4页Hydrographic Surveying and Charting

摘　　要：为掌握星历误差对GAMIT软件解算GPS/BDS数据定位的影响,选取不同精密星历分析长基线和短基线条件下,获得基线解算精度和点位坐标精度,结果表明:①不同的精密星历对GPS解算和短基线的BDS解算影响不大,可采用超快速精密星历;②对于长基线的BDS解算,要顾及北斗参考站数据的质量以及站间的兼容性和空间位置,需要调整站点组合以达到好的解算结果,不宜采用wum00。For understanding the position affect of GPS/BDS data by GAMIT,the different precise ephemeris are selected to analyze the baseline and point coordinate accuracy obtained by long baselines and short baselines.The conclusions are as follows:①For the short BDS baselines and the GPS baselines,different precision ephemerides have little effect on the result.Ultra-fast precision ephemeris can be used;②For the BDS long baselines,the quality of the BeiDou observing station data,the compatibility and spatial location between the observing stations need to be adjusted.The combination of observing stations needs to be adjusted to achieve a good solution result.If conditions permit,the wum00 shouldn’t be used.

关 键 词：全球卫星导航定位 北斗数据 精密星历 基线精度 网平差精度 点位精度 

分 类 号：P228.1[天文地球—大地测量学与测量工程]