利用Anubis检核BDS观测数据质量  

Quality check of BDS data using Anubis

作　　者：伊珣 徐爱功[1] 唐龙江[1] YI Xun;XU Aigong;TANG Longjiang(School of Geomatics,Liaoning Technical University,Fuxin,Liaoning 123000,China)

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000

出　　处：《导航定位学报》2021年第5期134-141,162,共9页Journal of Navigation and Positioning

基　　金：国家自然科学基金项目(41904037);国家重点研发计划项目(2016YFC0803102);辽宁省重点研发计划项目(2020JH2/10100044)。

摘　　要：卫星观测数据质量的好坏是保证北斗卫星导航系统(BDS)提供全球定位服务的重要前提,利用阿努比斯(Anubis)软件对2017—2019年间、26个测站的BDS数据质量进行检查分析,并利用派森(Python)编程语言实现了数据检查的批量处理与提取。数据检核实验表明B1I的数据完整率整体优于B3I,但B3I的多路径误差小于B1I。北斗三号(BDS-3)卫星在信噪比(SNR)和多路径误差上明显优于北斗二号(BDS-2)卫星,BDS-3的中圆地球轨道(MEO)卫星与BDS-2同类卫星SNR差别不大,但多路径误差减少了0.05 m。实验分析结果显示,BDS-3的数据质量相比于BDS-2有了很大的提升,为BDS精密定位服务提供一定的参考依据。The quality of satellite observation data is an important prerequisite for BeiDou navigation satellite System(BDS)to provide global positioning services.The quality of BDS data of 26 stations from 2017 to 2019 was analyzed by Anubis software,and using Python to realize the batch processing and extraction of data.Data checking experiments show that the data integrity rate of B1I is better than that of B3I,but the multipath of B3I is less than that of B1I.Satellites of BDS with global coverage(BDS-3)is superior to satellites of BeiDou navigation satellite(regional)System(BDS-2)in signal noise ratio(SNR)and multipath.The SNR of Medium Earth Orbit(MEO)satellite of BDS-3 is similar to that of BDS-2,but the multipath is reduced by 0.05 m.It can be seen that the data quality of BDS-3 is greatly improved compared with BDS-2,which provides a reference for BDS precision positioning service.

关 键 词：信号分析 北斗卫星导航系统 阿努比斯软件 质量检核 

分 类 号：P228[天文地球—大地测量学与测量工程]