Title: ARAIM Ground Architecture Based on GNSS Monitoring Infrastructures
Author(s): Santiago Perea, Michael Meurer, Ilaria Martini, Markus Rippl, Boris Pervan
Published in: Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017)
September 25 - 29, 2017
Oregon Convention Center
Portland, Oregon
Pages: 1008 - 1018
Cite this article: Perea, Santiago, Meurer, Michael, Martini, Ilaria, Rippl, Markus, Pervan, Boris, "ARAIM Ground Architecture Based on GNSS Monitoring Infrastructures," Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017), Portland, Oregon, September 2017, pp. 1008-1018.
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Abstract: This paper presents a methodology to validate MGEX precise products applied in the characterization of the GPS and Galileo constellation performance and fault detection. First this methodology compares precise orbits coming from four different MGEX analysis centers and contrasts the level of agreement among them. The validated orbits are used along with the code and phase observations collected by a set of ground stations to simultaneously estimate receiver biases and satellite offsets. Once the network is synchronized, the retrieval of the missing orbit and clock products is attempted. Results will show that with a simple snapshot based model, orbit and clock products can be validated to centimeter level. The ultimate goal of this methodology is to serve as an integrity layer between the MEGX products and the ISM generation.