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    Real-Time Precise Point Positioning in NAD83: Global and Regional Broadcast Corrections Compared

    Access Status
    Fulltext not available
    Authors
    Teunissen, Peter
    Huisman, L.
    Hu, C.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Teunissen, P.J.G. and Huisman, L. and Hu, C. 2013. Real-Time Precise Point Positioning in NAD83: Global and Regional Broadcast Corrections Compared. Journal of Surveying Engineering. 139 (1): pp. 1-10.
    Source Title
    Journal of Surveying Engineering
    DOI
    10.1061/(ASCE)SU.1943-5428.0000089
    ISSN
    0733-9453
    URI
    http://hdl.handle.net/20.500.11937/36063
    Collection
    • Curtin Research Publications
    Abstract

    Real-time precise point positioning (PPP) is possible through the availability of the real-time satellite orbit and clock corrections to broadcast ephemeris, the real-time broadcast corrections (BCs). The real-time BCs are currently available in global as well as in regional reference frames. In this contribution, PPP usage and the performance of these global and regional BCs are analyzed for the North American Datum of 1983 (NAD83). The limitations of the current regional BC approach for NAD83 are identified and the coordinate differences it leads to compared with the traditional global BC approach are shown. Although the biases as a result of the different reference frame usage are shown to be subcentimeter, it is also shown how they can be reduced or eliminated by modifying either the PPP algorithm or the regional BC approach. Analyses were performed for three different PPP variants, a single-frequency ionosphere-free variant, a dual-frequency ionosphere-free variant, and a single-frequency ionosphere-corrected variant.

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