测绘通报 ›› 2017, Vol. 0 ›› Issue (9): 11-14.doi: 10.13474/j.cnki.11-2246.2017.0277

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Real-time Observation Decoding and Positioning Analysis Based on Qianxun BeiDou Ground Based Augmentation System

HUANG Yongshuai1, SHI Junbo1,2, OUYANG Chenhao1, LU Xingning1   

  1. 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
    2. Key Laboratory of Precise Engineering and Industry Surveying, National Administration of Surveying, Mapping and Geoinformation, Wuhan 430079, China
  • Received:2016-12-27 Online:2017-09-25 Published:2017-10-12

Abstract: As the first commercial BeiDou ground based augmentation system (GBAS) in China, the Qianxun location network announced in May 2016 is able to provide high-precision positioning service for users in majority territory. This paper first introduces the message formatting and decoding broadcast by the Qianxun Beidou GBAS, and then evaluates the RTK and RTD positioning performance in Wuhan and Chongqing. Numerical results show that the positioning precision can reach centimeter for RTK and sub-meter for RTD, respectively. The aim of this paper is to provide a basis for the promotion of BeiDou GBAS.

Key words: Qianxun BeiDou ground based augmentation system, RTCM MSM, centimeter level RTK, sub-meter level RTD

CLC Number: