Flight Test Validation of New Honeywell DFMC GNSS Prototype – Future Aviation Grade Receiver

Matej Kucera, Radek Reznicek, Michal Pfleger, Milos Sotak, Zdenek Kana, Tomas Vaispacher, Pavel Ptacek

Abstract:	Honeywell has integrated, experimentally tested, and validated the behavior and performance of the Honeywell DFMC (Dual-Frequency Multi-Constellation) GNSS receiver prototype, as a contribution to European Union (EU) Clean Sky 2 Joint Undertaking (CS2 JU; Horizon 2020 program). The new DFMC receiver prototype combines new GNSS signals and ARAIM (Advanced Receiver Autonomous Integrity Monitoring) implementation in order to provide navigation system, which meets the required levels of navigation performance for next-generation aeronautics systems expressed in terms of accuracy, integrity, continuity, and availability of navigation information. GNSS receiver is equally suited for air-traffic/regional as well as business jets platforms. The prototype has been validated through a large flight-test campaign performed under the Clean Sky 2 Large Passenger Aircraft (LPA) Platform 3 - Disruptive European CocKpit (DECK) project. The campaign itself (over 30 flights with more than 130 flight hours in total) was focused on business jets (Dassault Falcon 900EX) in various flight test scenarios. The paper provides an overview of DFMC GNSS performance comparison to current single-frequency solutions achievable with current GPS + SBAS L1 C/A receivers, analysis of effects of pulse interference caused by DME systems on GNSS L5 signals and possible mitigation of C/N0 degradation with pulse-blanking algorithm. Finally, the ionospheric scintillation effects on the GNSS receiver performance during flights in equatorial regions of South America is analyzed. The position integrity levels provided by the baseline RAIM algorithm and the current experimental implementation of the ARAIM algorithm implemented in the Honeywell receiver prototype were also compared. In the analyses, a standard aerospace certified, and solution parity-space based algorithm was deployed as RAIM and a novel Honeywell developed clustered solution-separation based algorithm was designed for ARAIM.
Published in:	Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021) September 20 - 24, 2021 Union Station Hotel St. Louis, Missouri
Pages:	1746 - 1766
Cite this article:	Kucera, Matej, Reznicek, Radek, Pfleger, Michal, Sotak, Milos, Kana, Zdenek, Vaispacher, Tomas, Ptacek, Pavel, "Flight Test Validation of New Honeywell DFMC GNSS Prototype – Future Aviation Grade Receiver," Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021), St. Louis, Missouri, September 2021, pp. 1746-1766. https://doi.org/10.33012/2021.18136
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