Advances in Earth Science ›› 2018, Vol. 33 ›› Issue (11): 1161-1168. doi: 10.11867/j.issn.1001-8166.2018.11.1161.

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

Yongtao Li 1, 2( ), Jianwen Li 1, *( ), Lin Pan 1, Liangliang Guo 3, Rongrong Wei 4, Dezhi Liu 1   

  1. 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
  • Received:2018-07-09 Revised:2018-10-13 Online:2018-11-20 Published:2018-12-21
  • Contact: Jianwen Li E-mail:641594920@qq.com;zzljw@126.com
  • About author:

    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

Yongtao Li, Jianwen Li, Lin Pan, Liangliang Guo, Rongrong Wei, Dezhi Liu. Quality Assessment of the Beidou-3 New Signal B1C and B2a Observation Data *[J]. Advances in Earth Science, 2018, 33(11): 1161-1168.

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.

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