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    ARAIM for Vertical Guidance Using GPS and BeiDou

    197660_110561_Ahmed_ARAIM.pdf (659.5Kb)
    Access Status
    Open access
    Authors
    El-Mowafy, Ahmed
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    El-Mowafy, Ahmed. 2013. ARAIM for Vertical Guidance Using GPS and BeiDou. Journal of Global Positioning Systems. 12 (1): pp. 28-37.
    Source Title
    Journal of Global Positioning Systems
    DOI
    10.5081/jgps.12.1.28
    ISSN
    1446-3156
    URI
    http://hdl.handle.net/20.500.11937/15586
    Collection
    • Curtin Research Publications
    Abstract

    An advanced Receiver Autonomous Integrity Monitoring (ARAIM) approach is investigated when augmenting GPS satellites with the current regional BeiDou constellation. A procedure for integrity monitoring, including checking its availability, fault detection and exclusion, and integrity testing is presented. Fault modes and their probabilities using GPS and GPS+BeiDou are discussed. Testing of ARAIM for vertical guidance using real data in eight sites distributed globally (Australia, China, Netherlands, eastern Canada and Peru) show that the addition of the BeiDou constellation, despite the decreased preliminary confidence placed in its performance compared with GPS, results in a substantial improvement to ARAIM availability performance and a higher level of integrity, in particular at sites observing all of its current constellation (Australia and China). The improvement was less in sites that can only observe some or no GEO and IGSO satellites (Netherlands, Canada and Peru). However, the benefit of adding BeiDou to GPS at these sites is expected to substantially improve with full deployment of MEO satellites.

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