BDS-3卫星载波相位多路径误差分析  

Analysis of BDS-3 signal carrier multipath error

作　　者：李士坤 王勋[2] 冯江海 LI Shikun;WANG Xun;FENG Jianghai(Unit 63850,Baicheng 137001,China;Central South University,Changsha 410083,China)

机构地区：[1]63850部队,吉林白城137001 [2]中南大学,湖南长沙410083

出　　处：《测绘科学与工程》2021年第3期11-14,共4页Geomatics Science and Engineering

摘　　要：本文利用北斗全球卫星导航系统(BDS-3)卫星BlI.BlC.B2a三个频点观测数据,通过两个消电离层组合计算三频载波多路径误差,同时选取国际GNSS监测评估系统(iGMAS)不同纬度的4个测站进行分析,并与GPS和Galileo卫星数据进行对比。试验结果表明.BDS-3卫星与GPS和Galileo卫星的载波相位多路径误差分别约为5.5cm、3.5cm、0.9cm,并且随着测站纬度的升高均没有出现明显的纬度效应。The observation data of Bl I,BIC and B2a of the BDS-3 are used to calculate the multipath error of the triple-frequency carrier through two ionosphere-free combinations.At the same time,four international GNSS monitoring and assessment system(iGMAS)stations at different latitudes are selected for analysis,and the results are compared with those obtained by GPS and Galileo.The experimental results show that the phase multipath errors of BDS-3,GPS and Galileo satellites are about 5.5 cm,3.5 cm and 0.9 cm,respectively,and there is no obvious latitude effect with the increase of stations9 latitude.

关 键 词：北斗全球卫星导航系统 国际GNSS监测评估系统 载波相位多略径误差 纬度效应 

分 类 号：P228[天文地球—大地测量学与测量工程]