Shandong Science ›› 2025, Vol. 38 ›› Issue (3): 118-131.doi: 10.3976/j.issn.1002-4026.20240075

• Marine Information • Previous Articles     Next Articles

Assessment of PPP-B2b kinematic positioning performance under vehicle and vessel scenarios

XIE Xiaofeng1(), ZHANG Yuanfan2,*(), WANG Zhenjie2, DU Jun3   

  1. 1. National Earthquake Response Support Service, Beijing 100049, China
    2. College of Oceanography and Space Informatics, China University of Petroleum (East China), Qingdao 266580, China
    3. Qingdao Shihua Crude Oil Terminal, Qingdao 266500, China
  • Received:2024-06-03 Online:2025-06-20 Published:2025-06-26
  • Contact: ZHANG Yuanfan E-mail:xxf408@sina.com;z18010038@s.upc.edu.cn

Abstract:

The assessment of PPP-B2b kinematic positioning performance under different scenarios will be an important reference for users and contribute to the expansion of the application scope and promotion of BDS-3. In this study, the kinematic positioning performance of the PPP-B2b service of BDS-3 under different scenarios was comprehensively analyzed by performing one vehicle experiment and one vessel experiment. Experimental results indicate that using the post-processing product released by the Helmholtz Centre Potsdam-German Research Centre for Geosciences (GFZ) as a reference, the PPP-B2b product had orbit correction accuracy up to the decimeter level and clock correction accuracy up to the sub-meter level. In the vehicle experiment of PPP-B2b, multipath-root mean square (MP-RMS) for BDS-3 B1/B2 frequencies was 41.3 cm, while that for GPS L1/L2 frequencies was 52.2 cm. The positioning accuracies of BDS-3 in the horizontal and vertical directions were 10.3 and 10.5 cm and those of the BDS-3+GPS combination were 5.6 and 4.9 cm, respectively. In the vessel experiment of PPP-B2b, the MP-RMS for BDS-3 B1/B2 frequencies was 52.5 cm, while that for GPS L1/L2 frequencies was 70.4 cm. The accuracy values of BDS-3 in the horizontal and vertical directions were 22.5 and 12.0 cm and those of the BDS-3+GPS combination were 9.7 and 5.1 cm, respectively. The overall impact of multipath effects on the kinematic positioning performance of PPP-B2b in the vessel environment was slightly greater than that in the vehicle environment.

Key words: precise point positioning, BeiDou-3 navigation satellite system, PPP-B2b service

CLC Number: 

  • P228