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    Combined GPS + BDS for short to long baseline RTK positioning

    Access Status
    Open access via publisher
    Authors
    Odolinski, R.
    Teunissen, Peter
    Odijk, Dennis
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Odolinski, R. and Teunissen, P. and Odijk, D. 2015. Combined GPS + BDS for short to long baseline RTK positioning. Measurement Science and Technology. 26 (4): Article ID 045801.
    Source Title
    Measurement Science and Technology
    DOI
    10.1088/0957-0233/26/4/045801
    ISSN
    0957-0233
    School
    Department of Spatial Sciences
    URI
    http://hdl.handle.net/20.500.11937/39149
    Collection
    • Curtin Research Publications
    Abstract

    The BeiDou Navigation Satellite System (BDS) has become fully operational in the Asia-Pacific region and it is of importance to evaluate what BDS brings when combined with the Global Positioning System (GPS). In this contribution we will look at the short, medium and long single-baseline real-time kinematic (RTK) positioning performance. Short baseline refers to when the distance between the two receivers is at most a few kilometers so that the relative slant ionospheric and tropospheric delays can be assumed absent, whereas with medium baseline we refer to when the uncertainty of these ionospheric delays can reliably be modeled as a function of the baseline length. With long baseline we refer to the necessity to parameterize the ionospheric delays and (wet) Zenith Tropospheric Delay (ZTD) as completely unknown. The GNSS real data are collected in Perth, Australia. It will be shown that combining the two systems allows for the use of higher than customary elevation cut-off angles. This can be of particular benefit in environments with restricted satellite visibility such as in open pit mines or urban canyons.

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