李树文,王潜心,武威

• 1:中国矿业大学环境与测绘学院
• 2:中国矿业大学国土环境与灾害监测国家地理信息局重点实验室

摘要(Abstract)：

为了对BDS-3全球定位性能进行全面系统的评估,该文基于MGEX测站2020年336—342 d的BDS和GPS实测数据,对比分析BDS-3、GPS以及BDS-3/BDS-2的单频及双频定位性能,并研究不同区域、不同高度角对BDS-3、GPS、BDS-3/BDS-2定位精度与收敛时间的影响。实验结果表明:双频PPP中,加入BDS-2后,与单BDS-3不同频率组合相比较,在定位精度上没有明显的提升,收敛时间提升了22%、13%,GPS定位精度也略优于BDS-3;单频PPP方面,BDS-3新信号B1C定位性能最优,与GPS L1处于同一水平;不同区域内,双频PPP在亚洲和欧洲区域表现更好,单频PPP在欧洲区域表现略好与亚洲区域;此外,随着高度角增加,BDS-3的卫星可见数要多于GPS,BDS的卫星空间结构更优异,受遮蔽环境影响较小。

关键词(KeyWords)： BDS-3;PPP;精度分析;不同区域;不同高度角

Abstract:

Keywords:

基金项目(Foundation): 江苏省研究生科研与实践创新计划资助项目（SJCX21＿1018）

作者(Author): 李树文,王潜心,武威

DOI: 10.16251/j.cnki.1009-2307.2021.12.010

参考文献(References)：

• [1] 谭述森.北斗系统创新发展与前景预测[J].测绘学报，2017,46(10):1284-1289.(TAN Shusen.Innovative development and forecast of BeiDou system[J].Acta Geodaetica et Cartographica Sinica,2017,46(10):1284-1289.)
• [2] 张小红，胡家欢，任晓东.PPP/PPP-RTK新进展与北斗/GNSS PPP定位性能比较[J].测绘学报，2020,49(9):1084-1100.(ZHANG Xiaohong,HU Jiahuan,REN Xiaodong.New progress of PPP/PPP-RTK and positioning performance comparison of BDS/GNSS PPP[J].Acta Geodaetica et Cartographica Sinica,2020,49(9):1084-1100.)
• [3] 张小红，李星星，李盼.GNSS精密单点定位技术及应用进展[J].测绘学报，2017,46(10):1399-1407.(ZHANG Xiaohong,LI Xingxing,LI Pan.Review of GNSS PPP and its application[J].Acta Geodaetica et Cartographica Sinica,2017,46(10):1399-1407.)
• [4] 张辉.BDS/GPS组合精密单点定位关键技术研究[D].郑州：信息工程大学，2018.(ZHANG Hui.Research on the key technologies of BDS/GPS precise point positioning[D].Zhengzhou:Information Engineering University,2018.)
• [5] 朱松，毛勇，易文婷，等.北斗系统PPP定位精度及收敛速度分析[J].大地测量与地球动力学，2021,41(2):122-124.(ZHU Song,MAO Yong,YI Wenting,et al.Analysis of positioning accuracy and convergence of BDS precise point positioning[J].Journal of Geodesy and Geodynamics,2021,41(2):122-124.)
• [6] YAO Yibin,PENG Wenjie,XU Chaoqian,et al.The realization and evaluation of mixed GPS/BDS PPP ambiguity resolution[J].Journal of Geodesy,2019,93(9):1283-1295.
• [7] ZHANG Zhiteng,LI Bofeng,NIE Liangwei,et al.Initial assessment of BeiDou-3 global navigation satellite system:Signal quality,RTK and PPP[J].GPS Solutions,2019,23(4):1-12.
• [8] 杨宇飞，杨元喜，胡小工，等.北斗三号卫星两种定轨模式精度比较分析[J].测绘学报，2019,48(7):831-839.(YANG Yufei,YANG Yuanxi,HU Xiaogong,et al.Comparison and analysis of two orbit determination methods for BDS-3 satellites[J].Acta Geodaetica et Cartographica Sinica,2019,48(7):831-839.)
• [9] 徐宗秋，庄典，杨瑞雪，等.BDS-3基本系统的动态单点定位性能评估[J].测绘科学，2020,45(6):46-50.(XU Zongqiu,ZHUANG Dian,YANG Ruixue,et al.Kinematic single point positioning performance evaluation of BDS-3 preliminary system[J].Science of Surveying and Mapping,2020,45(6):46-50.)
• [10] GENG Jianghui,LI Xiaotao,ZHAO Qile,et al.Inter-system PPP ambiguity resolution between GPS and BeiDou for rapid initialization[J].Journal of Geodesy,2019,93(3):383-398.
• [11] SHI Junbo,OUYANG Chenhao,HUANG Yongshuai,et al.Assessment of BDS-3 global positioning service:Ephemeris,SPP,PPP,RTK,and new signal[J].GPS Solutions,2020,24(3):1-14.
• [12] 宋伟伟，赵新科，楼益栋，等.北斗三号PPP-B2b服务性能评估[J/OL].武汉大学学报(信息科学版)[2021-06-21].https://kns.cnki.net/kcms/detail/detail.aspx?dbcode=CAPJ&dbname=CAPJLAST&filename=WHCH20210611000&uniplatform=NZKPT&v=kv866gsLbeN39zJjhb5hZ47NyweA1G8V1ct2vHn%25 mmd2Bv58M0nKZ1AM3kA7isOu7EEKZ.)(SONG Weiwei,ZHAO Xinke,LOU Yidong,et al.Performance evaluation of BDS-3 PPP-B2b service[J/OL].Geomatics and Information Science of Wuhan University[2021-07-22].https://kns.cnki.net/kcms/detail/detail.aspx?dbcode=CAPJ&dbname=CAPJLAST&filename=WHCH20210611000&uniplatform=NZKPT&v=kv866gsLbeN39zJjhb5hZ47NyweA1G8V1ct2vHn%25 mmd2Bv58M0nKZ1AM3kA7isOu7EEKZ.)
• [13] 蔡洪亮，孟轶男，耿长江，等.北斗三号全球导航卫星系统服务性能评估：定位导航授时、星基增强、精密单点定位、短报文通信与国际搜救[J].测绘学报，2021,50(4):427-435.(CAI Hongliang,MENG Yinan,GENG Changjiang,et al.BDS-3 performance assessment:PNT,SBAS,PPP,SMC and SAR[J].Acta Geodaetica et Cartographica Sinica,2021,50(4):427-435.)
• [14] 朱玉香，陈永贵，安春华.不同截止高度角下BDS-3 SPP精度分析[J].测绘通报，2021(3):23-27.(ZHU Yuxiang,CHEN Yonggui,AN Chunhua.SPP accuracy analysis of BDS-3 under different masking angles[J].Bulletin of Surveying and Mapping,2021(3):23-27.)
• [15] ZUMBERGE J F,HEFLIN M B,JEFFERSON D C,et al.Precise point positioning for the efficient and robust analysis of GPS data from large networks[J].Journal of Geophysical Research:Solid Earth,1997,102(B3):5005-5017.