Fault-free integrity analysis of mega-constellation-augmented GNSS

Danielle Racelis, Boris Pervan, Mathieu Joerger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationProceedings of the 32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019
PublisherInstitute of Navigation
Pages465-484
Number of pages20
ISBN (Electronic)0936406232, 9780936406237
DOIs
StatePublished - 2019
Externally publishedYes
Event32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019 - Miami, United States
Duration: Sep 16 2019Sep 20 2019

Publication series

NameProceedings of the 32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019

Conference

Conference32nd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2019
CountryUnited States
CityMiami
Period9/16/199/20/19

ASJC Scopus subject areas

  • Communication
  • Computer Science Applications
  • Information Systems
  • Software
  • Electrical and Electronic Engineering
  • Computer Networks and Communications

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