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    Ps-LAMBDA: Ambiguity success rate evaluation software for interferometric applications

    196638_196638.pdf (7.795Mb)
    Access Status
    Open access
    Authors
    Verhagen, S.
    Li, Bofeng
    Teunissen, Peter
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Verhagen, Sandra and Li, Bofeng and Teunissen, Peter J.G. 2013. Ps-LAMBDA: Ambiguity success rate evaluation software for interferometric applications. Computers & Geosciences. 54: pp. 361-376.
    Source Title
    Computers & Geosciences
    DOI
    10.1016/j.cageo.2013.01.014
    ISSN
    00983004
    Remarks

    NOTICE: this is the author’s version of a work that was accepted for publication in Computers & Geosciences. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computers & Geosciences, Vol. 54 (2013). DOI: 10.1016/j.cageo.2013.01.014

    URI
    http://hdl.handle.net/20.500.11937/36620
    Collection
    • Curtin Research Publications
    Abstract

    Integer ambiguity resolution is the process of estimating the unknown ambiguities of carrier-phase observables as integers. It applies to a wide range of interferometric applications of which Global Navigation Satellite System (GNSS) precise positioning is a prominent example. GNSS precise positioning can be accomplished anytime and anywhere on Earth, provided that the integer ambiguities of the very precise carrier-phase observables are successfully resolved. As wrongly resolved ambiguities may result in unacceptably large position errors, it is crucial that one is able to evaluate the probability of correct integer ambiguity estimation. This ambiguity success rate depends on the underlying mathematical model as well as on the integer estimation method used. In this contribution, we present the Matlab toolbox Ps-LAMBDA for the evaluation of the ambiguity success rates. It allows users to evaluate all available success rate bounds and approximations for different integer estimators. An assessment of the sharpness of the bounds and approximations is given as well. Furthermore, it is shown how the toolbox can be used to assess the integer ambiguity resolution performance for design and research purposes, so as to study for instance the impact of using different GNSS systems and/or different measurement scenarios.

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