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    The mixed-receiver BeiDou inter-satellite-type bias and its impact on RTK positioning

    Access Status
    Fulltext not available
    Authors
    Nadarajah, Nandakumaran
    Teunissen, Peter
    Sleewaegen, J.
    Montenbruck, O.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Nadarajah, N. and Teunissen, P. and Sleewaegen, J. and Montenbruck, O. 2014. The mixed-receiver BeiDou inter-satellite-type bias and its impact on RTK positioning. GPS Solutions. 19 (3): pp. 357-368.
    Source Title
    GPS Solutions
    DOI
    10.1007/s10291-014-0392-6
    ISSN
    1080-5370
    School
    Department of Spatial Sciences
    URI
    http://hdl.handle.net/20.500.11937/25697
    Collection
    • Curtin Research Publications
    Abstract

    The inter-satellite-type bias (ISTB) is a receiver-dependent hardware delay/bias between different satellite types. Our recent research revealed the existence of nonzero mixed-receiver phase ISTBs for the Chinese BeiDou system. Triggered by this finding, global navigation satellite system receiver manufactures, who are in the early stage of BeiDou-enabled receiver developments, are working toward a mutually consistent measurement extraction procedure. We analyze the long-term stability and current status of the mixed-receiver ISTBs, as well as study their impact on BeiDou stand-alone real-time kinematic (RTK) positioning. Our results confirm that a recent update in one of the receiver types has aligned it with one of the other receiver types. However, since not all receiver types are aligned yet, nonzero mixed-receiver ISTBs are shown to be still present. Analyses of BeiDou stand-alone RTK positioning using mixed-receiver types demonstrate that ISTBs could seriously affect the integer ambiguity resolution performance and that a priori correction for these biases will dramatically improve the success rate. Our analyses using real data from three different receiver types also demonstrate the long-term stability of the ISTBs, thus showing that such a priori calibration is indeed possible.

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