Trajectory optimisation for avionics-based GNSS integrity augmentation system

Roberto Sabatini, Terry Moore, Chris Hill, Alessandro Gardi, Subramanian Ramasamy, Michael Gilgien

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations


In this paper, trajectory optimisation algorithms developed specifically for the Global Navigation satellite System (GNSS) Avionics-Based Integrity Augmentation (ABIA) system are presented. The ABIA system is designed to increase the levels of integrity and accuracy (as well as continuity in multi-sensor data fusion architectures) of GNSS in a variety of mission- and safety-critical aviation applications. The trajectory optimisation algorithms can be employed both for flight planning as well as real-time optimisation of manned and unmanned aircraft for all flight phases. Three and six Degrees-of-Freedom (3-DoF/6-DoF) aircraft dynamics models are adopted to generate a number of feasible flight trajectories that also satisfy the GNSS constraints. A detailed simulation case study is presented to evaluate the performance of trajectory optimisation algorithms for GNSS integrity augmentation using an AIRBUS A320 3-DoF aircraft dynamics model. Results confirm that the employed trajectory optimisation algorithms are capable of supporting high-integrity tasks when GNSS is used as the primary source of navigation data.

Original languageBritish English
Title of host publication35th DASC Digital Avionics Systems Conference 2016, DASC 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509056002
StatePublished - 7 Dec 2016
Event35th DASC Digital Avionics Systems Conference, DASC 2016 - Sacramento, United States
Duration: 25 Sep 201629 Sep 2016

Publication series

NameAIAA/IEEE Digital Avionics Systems Conference - Proceedings
ISSN (Print)2155-7195
ISSN (Electronic)2155-7209


Conference35th DASC Digital Avionics Systems Conference, DASC 2016
Country/TerritoryUnited States


  • Avionics Based Integrity Augmentation
  • Caution and Wanirng Flags
  • GNSS Integrity
  • Mission-and Safety-Critical GNSS Applications
  • Trajectory Optimisation


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