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    GNSS Integer Ambiguity Validation: Overview of Theory and Methods

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    Fulltext not available
    Authors
    Teunissen, Peter
    Date
    2013
    Type
    Conference Paper
    
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    Citation
    Teunissen, P. 2013. GNSS Integer Ambiguity Validation: Overview of Theory and Methods, in Proceedings of the Institute of Navigation Pacific PNT Meeting, Apr 23-25 2013, pp. 673-684. Honolulu, Hawai: The Institute of Navigation.
    Source Title
    PROCEEDINGS OF THE ION 2013 PACIFIC PNT MEETING
    Source Conference
    ION Pacific PNT Meeting
    School
    Department of Spatial Sciences
    URI
    http://hdl.handle.net/20.500.11937/12987
    Collection
    • Curtin Research Publications
    Abstract

    Integer carrier-phase ambiguity resolution is the key to fast and high-precision Global Navigation Satellite System (GNSS) positioning and navigation. It is the process of resolving the unknown cycle ambiguities of the carrier-phase data as integers. Once this has been done successfully, the very precise carrier-phase data will act as pseudorange data, thus making very precise positioning and navigation possible. Procedures for carrier-phase ambiguity resolution not only consist of integer ambiguity estimation, but also include ambiguity acceptance testing. Such testing is important, in particular in light of the ever increasing integrity demands on GNSS solutions. Although the statistical theory of integer ambiguity estimation is reasonably well established, this cannot yet be said of ambiguity acceptance testing. The aim of this contribution is to provide an overview of current theory and methods of ambiguity validation, and to present it in a unifying framework. It will also provide the tools for comparing a devaluating current procedures for acceptance testing and therefore create the possibility to devise new tests that are better than existing ones.

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