基于广西BDS观测数据的PPP算法研究与精度分析  

Research on BDS PPP Algorithm and Precision Analysis by Using BDS Data in Guangxi

作　　者：黄祥雄 廖超明 唐丹 HUANG Xiangxiong;LIAO Chaoming;TANG Dan(Guangxi Nonferrous Survey and Design Institute,Nanning 530023,China;School of Land Resources and Surveying and Mapping,Guangxi Teachers Education University,Nanning 530001,China;Geographic Information Center of Guangxi,Nanning 530023,China)

机构地区：[1]广西有色勘察设计研究院,广西南宁530023 [2]广西师范学院国土资源与测绘学院,广西南宁530001 [3]广西基础地理信息中心,广西南宁530023

出　　处：《海洋测绘》2018年第2期33-37,共5页Hydrographic Surveying and Charting

基　　金：国家自然科学基金(41361022);广西空间信息与测绘重点实验室开放基金(13-051-14-20);广西培养新世纪学术和技术带头人专项资金

摘　　要：当前我国北斗卫星导航系统(BDS)已正式运行,带动了BDS在其他产业上的广泛应用。研究了基于无电离层组合的BDS PPP算法,以广西BDS观测数据为例,利用我国iGMAS的北斗轨道和钟差产品,分三个不同时段长(0.5h、2h和24h)进行PPP数据处理和定位精度分析。结果表明,采用2h的BDS观测数据进行PPP解算,完全能够满足我国1∶2 000比例尺航摄像控点的测量精度要求。研究成果能够为北斗卫星导航系统在我国低纬地区、以及面向东盟各国推广应用提供技术支持。At present,Beidou navigation satellite system(BDS)has been officially miming,which leads to the application of BDS in other industries.In this paper,BDS PPP algorithm based on ionosphere-free combination is achieved with BDS observational data of Guangxi.With the iGMAS orbit and clock products,the positioning accuracy of BDS is analyzed by using of three situations(0.5 hours,2 hours and 24 hours)in Guangxi.The results show that the 2 hours of BDS observation data can be used in PPP calculation,which can fully meet the requirements of the measurement accuracy of 1:2 000 scale aerial camera control points in China.The results can provide technical support for Beidou satellite navigation system in Chilians low latitude areas,as well as the promotion and application of ASEAN countries.

关 键 词：北斗卫星导航系统 精密单点定位 广西BDS观测数据 iGMAS 低纬地区 

分 类 号：TN95[电子电信—信号与信息处理]