Abstract
In aeronautics, Receiver Autonomous Integrity Monitoring (RAIM) techniques based on GPS L1 measurements are currently used in En-route and NPA operations, but not in those that require vertical guidance (APV operations/LPV procedures like LPV200). For these phases of flight SBAS, GBAS or classical ILS navaids are used because they offer better performance than GPS RAIM. However, in future RAIM performance is expected to improve significantly due to the deployment of new GNSS constellations in addition to GPS and a second frequency (L5) protected for use in aviation. The former will result in more satellites being available to the user and the latter will enable ionosphere delays to be corrected for autonomously onboard. Therefore, it is envisaged that RAIM will play a significant role in APV operations in the future. This paper highlights the possible role for multi constellation RAIM techniques in APV operations and identifies their advantages and limitations. The candidate algorithms are then reviewed in detail and conclusions drawn on their potential and future research.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
