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    Prediction of RTK positioning integrity for journey planning

    Access Status
    Fulltext not available
    Authors
    El-Mowafy, Ahmed
    kubo, Nobuaki
    Date
    2020
    Type
    Journal Article
    
    Metadata
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    Citation
    El-Mowafy, A. and kubo, N. 2020. Prediction of RTK positioning integrity for journey planning. Journal of Applied Geodesy. : pp. 1-12.
    Source Title
    Journal of Applied Geodesy
    DOI
    10.1515/jag-2020-0038
    ISSN
    1862-9024
    Faculty
    Faculty of Science and Engineering
    School
    School of Earth and Planetary Sciences (EPS)
    URI
    http://hdl.handle.net/20.500.11937/81484
    Collection
    • Curtin Research Publications
    Abstract

    Positioning integrity is crucial for Intelligent Transport Systems (ITS) applications. In this article, a method is presented for prediction of GNSS positioning integrity for ITS journey planning. This information, in addition to other route information, such as distance and time, can be utilized to choose the safest and economical route. We propose to combine the Advanced Receiver Autonomous Integrity Monitoring (ARAIM) technique, tailored for ITS, with 3D city models. Positioning is performed by GNSS Real-Time Kinematic (RTK) method, which can provide the accuracy required for ITS. A new threat model employed for computation of the protection levels (PLs) for RTK positioning is discussed. Demonstration of the proposed approach is performed through a kinematic test in an urban area in Tokyo. The comparison between the prediction method and the actual observations show that the two estimates close satellite geometry and PLs. The method produced PLs that bounds the actual position errors all the time and they were less than the preset alert limit.

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