Research on GPS/Galileo Real-Time Zenith Troposphere Delay Estimation
Abstract This paper calculates ZTD for Galileo, GPS and GPS/Galileo, with PPP ZTD estimation method using observation data from 14 MGEX stations. The RMSs of Galileo-GPS ZTD differences range from 8 mm to 16 mm. The average of RMSs of total stations is 12.3 mm, which proves that Galileo-ZTD agrees well with GPS-ZTD and that the accuracy of Galileo real-time ZTD is satisfactory. Meanwhile, IGS final ZTD products are adopted to assess the performance of each solution. The result shows that the accuracy is improved by 5%-35% when compared to GPS single solutions, and 25%-51% to Galileo single solutions.
Key words :
GPS
Galileo
zenith troposphere delay
real-time
PPP
Cite this article:
MAO Yuhui,YUE Zhongqi,XIE Binbin et al. Research on GPS/Galileo Real-Time Zenith Troposphere Delay Estimation[J]. jgg, 2019, 39(7): 728-732.
MAO Yuhui,YUE Zhongqi,XIE Binbin et al. Research on GPS/Galileo Real-Time Zenith Troposphere Delay Estimation[J]. jgg, 2019, 39(7): 728-732.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2019/V39/I7/728
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