GNSS World of China

Volume 48 Issue 2
Apr.  2023
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LIU Honghui, WANG Qianxin, YU Zhihao, WANG Maolei, LIU Yongliang. Comparison and analysis of GNSS precision point positioning performance based on DCB and OSB products[J]. GNSS World of China, 2023, 48(2): 36-42. doi: 10.12265/j.gnss.2022191
Citation: LIU Honghui, WANG Qianxin, YU Zhihao, WANG Maolei, LIU Yongliang. Comparison and analysis of GNSS precision point positioning performance based on DCB and OSB products[J]. GNSS World of China, 2023, 48(2): 36-42. doi: 10.12265/j.gnss.2022191
shu

Comparison and analysis of GNSS precision point positioning performance based on DCB and OSB products

doi: 10.12265/j.gnss.2022191
  • 1.

    School of Environment and Surveying and Mapping, China University of Mining and Technology, Xuzhou Jiangsu 221116, China

  • 2.

    Guangzhou Hi-target Navigation Tech Co., Ltd., Guangzhou 510000, China

  • Received Date: 2022-10-18
  • Accepted Date: 2022-10-18
    • Available Online: 2023-04-28
    Abstract
  • With the development of the Global Navigation Satellite System (GNSS), the channels and frequencies used for precision point positioning (PPP) are gradually diversified. Therefore, based on the original observation equations, this study derived the dual-frequency ionosphere-free (IF) PPP model for differential code bias (DCB) and observable-specific signal bias (OSB) products, respectively, and used 10-day continuous observation data collected from 50 Multi-GNSS Experiment (MGEX) stations to analyze the performance of the PPP model for each GNSS system. The results show that the performance of PPP model using the OSB product is consistent with that of the conventional DCB product, and the OSB product is more convenient to use and has more applications in future multi-frequency PPP.

     

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