Journal of Marine Sciences ›› 2019, Vol. 37 ›› Issue (4): 36-47.DOI: 10.3969/j.issn.1001-909X.2019.04.004

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Analysis of the influence of marine environment on GPS multipath effect

MU Zhe-han1, GUO Bo-feng*1,2, TANG Long3   

  1. 1. School of Marine Science and Technology, Tianjin University, Tianjin 300072, China;
    2. Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, Linyi 276000, China;
    3. School of Civil and Transportation, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2019-05-28 Revised:2019-08-30 Online:2019-12-15 Published:2022-11-10

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Abstract: In order to understand the impact of marine environment and terrestrial environment on GPS multipath effect, Anubis software was used to analyze the multipath error in the marine environment and terrestrial environment based on the observation data of two stations at the seaside. The differences were compared and analyzed. The results show that: (1) When the satellite elevation is low, the multipath error in the marine environment and the terrestrial environment increases gradually with the decrease of the satellite elevation angle, and the multipath error increase in the marine environment is significantly greater than that in the terrestrial environment. (2) When the satellite elevation angle is less than 20°, the multipath error in the marine environment is greater than the multipath error in the terrestrial environment; when the elevation angle is greater than 20°, the difference in the multipath error between the sea surface direction and the land direction is small.

Key words: marine environment, multipath effect, Anubis software, GPS observation

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