Abstract
With the rapid development of GNSS technology in the field of atmospheric and ocean remote sensing, especially the rise of GNSS remote sensing technology such as GNSS-R, which has promoted the wider application of coastal GNSS stations, such as crustal deformation, absolute sea level change, tide level changes monitoring, air-sea exchange and other fields. In view of the current research on the sea surface multipath and its impact on the precision of GNSS positioning is relatively few, in this paper, we selected the United States PBO network of coastal CORS station SC02 and its surrounding three PBO stations ALBH, P438 and P439 to analyze the characteristics of multipath effects of the coastal GNSS stations and their time series features. Then the stations are grouped and GAMIT is used for baseline solution. By setting different cutoff elevation angles, comparing the results of baseline solution and the residuals of multipath effects to explore whether the multipath effect of sea surface has a significant impact on the precision positioning of coastal GNSS stations. The result shows that when the cutoff elevation angle is selected from 10° to 15°, the result of the baseline solution is the best, and the effect of sea surface multipath on GNSS precision positioning is the least. Through the experimental, it is hoped to provide a reference for the future deployment of GNSS stations and GNSS for tide level real-time monitoring in coastal areas in the future, and to further promote the integrated application of coastal GNSS stations.
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Acknowledgements
Thanks to the United States NSF, USGS, and NASA who launched the Earthscope and authorized the use of GPS data. This research is supported by the National Natural Science Foundation of China (41104019; 41674001; 41731066); Fundamental Research Funds for Research Funds of Central Universities (310826172202). Thanks to the editors and anonymous referees provide for the valuable comments and suggestions in this paper!
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He, Z. et al. (2018). Analysis of Sea Surface Multipath and Impact on GNSS Precision Positioning. In: Sun, J., Yang, C., Guo, S. (eds) China Satellite Navigation Conference (CSNC) 2018 Proceedings. CSNC 2018. Lecture Notes in Electrical Engineering, vol 497. Springer, Singapore. https://doi.org/10.1007/978-981-13-0005-9_15
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DOI: https://doi.org/10.1007/978-981-13-0005-9_15
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