@inproceedings{9b9a0099295f490d80a6286b68bb597f,
title = "Fault-free integrity analysis of mega-constellation-augmented GNSS",
abstract = "In this paper, we evaluate the potential of mega-constellation-augmented GNSS (GNSS-MC) to provide fault-free high-integrity positioning in both open sky and urban areas. We derive a method to integrate dual-frequency carrier-phase ranging measurements from GNSS at medium Earth orbit (MEO), and mega-constellations at low Earth orbit (LEO) to achieve global carrier-phase positioning. From the perspective of users on earth, LEO satellites are moving much faster than GNSS at MEO. The large angular variations generated by these fast-moving LEO satellites are exploited for rapid estimation of floating valued cycle ambiguities. The addition of mega-constellations to GNSS also improves the spatial diversity of ranging sources which enables improved navigation performance in areas where visible GNSS satellites are too few to obtain a position fix, such as in dense cities and urban canyons. This research helps identify the scope of applications potentially enabled by leveraging communication mega-constellations in safety-critical land navigation applications.",
author = "Danielle Racelis and Boris Pervan and Mathieu Joerger",
note = "Publisher Copyright: {\textcopyright} 2019, Institute of Navigation.; 32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019 ; Conference date: 16-09-2019 Through 20-09-2019",
year = "2019",
doi = "10.33012/2019.16862",
language = "English (US)",
series = "Proceedings of the 32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019",
publisher = "Institute of Navigation",
pages = "465--484",
booktitle = "Proceedings of the 32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019",
address = "United States",
}