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    Functional model for spacecraft formation flying using non-dedicated GPS/Galileo receivers

    Access Status
    Fulltext not available
    Authors
    Buist, P.
    Teunissen, Peter
    Giorgi, G.
    Verhagen, S.
    Date
    2010
    Type
    Conference Paper
    
    Metadata
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    Citation
    Buist, P. and Teunissen, P. and Giorgi, G. and Verhagen, S. 2010. Functional model for spacecraft formation flying using non-dedicated GPS/Galileo receivers.
    Source Title
    Programme and Abstract Book - 5th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing, NAVITEC 2010
    DOI
    10.1109/NAVITEC.2010.5707989
    ISBN
    9781424487417
    School
    Department of Spatial Sciences
    URI
    http://hdl.handle.net/20.500.11937/13074
    Collection
    • Curtin Research Publications
    Abstract

    There is trend in spacecraft engineering toward distributed systems where a number of smaller spacecraft work as a larger multi-instrumented satellite. However, in order to make the small satellites work together as a single large platform, the precise relative positions and orientations of the elements of the formation have to be estimated. Global Navigation Satellite System (GNSS) receivers can be utilized to provide baseline estimates with centimeter to millimeter level accuracy. The legitimate spaceborne receivers can not be applied on smaller satellites due to various restrictions which are discussed in this paper, and therefore non-dedicated receivers are lately being used. However, to achieve precise relative positioning in situations with high dynamics and/or large receiver clock offsets, the standard functional model for GNSS-based relative positioning can not be applied. In the presented hardware-in-the-loop simulation of the Proba-3 spacecraft flying in formation, the error for the standard functional model can up to 16 centimeters. A new functional model is introduced that can correct the time-varying offset error and achieve the mm-level accuracy of GNSS even with non-dedicated GNSS receivers. ©2010 IEEE.

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