地球科学进展

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2018 , Vol. 33 >Issue 11: 1161 - 1168

DOI: https://doi.org/10.11867/j.issn.1001-8166.2018.11.1161.

北斗三号新信号B1C和B2a观测数据质量分析评估*

  • 李涌涛 ,
  • 李建文 ,
  • 潘林 ,
  • 郭亮亮 ,
  • 魏绒绒 ,
  • 刘德智
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  • 1.信息工程大学,河南 郑州 450001
    2.西安测绘总站,陕西 西安 710054
    3.贵州省水利水电勘测设计研究院,贵州 贵阳 550002
    4.千寻位置网络有限公司,上海 200438

作者简介:李涌涛(1990-),男,云南省玉溪人,硕士研究生,主要从事电离层TEC建模与数据分析研究.E-mail:641594920@qq.com

收稿日期: 2018-07-09

  修回日期: 2018-10-13

  网络出版日期: 2018-12-21

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, 2018,
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Quality Assessment of the Beidou-3 New Signal B1C and B2a Observation Data*

  • Yongtao Li ,
  • Jianwen Li ,
  • Lin Pan ,
  • Liangliang Guo ,
  • Rongrong Wei ,
  • Dezhi Liu
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  • 1.The PLA Information Engineering University, Zhengzhou 450001, China
    2.Xi'an Division of Surveying and Mapping, Xi'an 710054, China
    3.Guizhou Survey & Design Research Institute for Water Resources and Hydropower, Guiyang 550002, China;
    4.Qianxun Spatial Intelligence, Shanghai 200438,China

First author:Li Yongtao(1990-), male,Yuxi County,Yunnan Province,Master student. Research areas include ionospheric TEC modeling and data analysis. E-mail:641594920@qq.com

Received date: 2018-07-09

  Revised date: 2018-10-13

  Online published: 2018-12-21

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地球科学进展 编辑部, 2018,
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摘要

随着北斗三号全球卫星导航系统16颗组网中圆地球轨道(MEO)卫星的发射成功与新信号的播发,北斗正式进入全球系统的建设阶段,同时国际全球导航卫星系统(GNSS)监测评估系统(iGMAS)也从卫星端到地面接收端等各方面对北斗三号系统的运行性能进行系统测试和评估。从数据完整率、多路径误差、伪距噪声和载噪比等4个方面,对12颗北斗三号MEO卫星上播发的新信号B1C和B2a的观测数据质量进行分析评估,并与全球定位系统(GPS)和伽利略(GALILEO)系统进行比较分析。结果表明,北斗三号系统内B1C的观测数据完整率优于B2a,多路径误差、伪距噪声和载噪比B2a信号优于B1C,北斗三号12颗MEO卫星的工作性能相当,即北斗三号在各卫星建设中的一致性与统一性。伪距噪声方面北斗三号较GPS和GALILEO略大,观测数据完整率、多路径误差和载噪比等方面北斗三号则与GPS和GALILEO相当。

关键词： 北斗三号; B1C和B2a; 数据质量; 多路径误差; 载噪比

本文引用格式

李涌涛 , 李建文 , 潘林 , 郭亮亮 , 魏绒绒 , 刘德智 . 北斗三号新信号B1C和B2a观测数据质量分析评估*[J]. 地球科学进展, 2018 , 33(11) : 1161 -1168 . DOI: 10.11867/j.issn.1001-8166.2018.11.1161.

Abstract

With the successful launch of the sixteen MEO satellites of the Beidou-3 global satellite navigation system and the broadcast of new signals, Beidou has officially entered the global construction stage while the international GNSS Monitoring and Assessment System (iGMAS) is also performing systematic testing and evaluation on various aspects of operational performance from satellite end to ground receiving end of Beidou-3 system. This paper analyzed and evaluated the observation quality of new signals B1C and B2a broadcasted by the twelve new Beidou-3 MEO satellites on the observation data integrity rate, multipath error, pseudorange noise and Carrier-to-Noise Ratio (CNR) compared with GPS and GALILEO. The results show that the observation data integrity rate of B1C signal is better than that of B2a signal in the Beidou-3 system. In the aspects of multipath error, pseudorange noise and CNR, B2a signal is better than that of B1C. The performances of the twelve MEO satellites of Beidou-3 are equivalent, that is, for Beidou-3, the consistency of satellites can be guaranteed. In terms of pseudo-range noise, Beidou-3 is slightly worse than GPS and GALILEO While the observation data integrity rate, multipath error and CNR of Beidou-3 are equivalent to those of GPS and GALILEO.

Key words： Beidou-3; B1C and B2a; Observation data quality; Multipath error; Carrier-to-noise ratio.

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