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    Low-Complexity Instantaneous Ambiguity Resolution with the Affine-Constrained GNSS Attitude Model

    196759_196759.pdf (569.8Kb)
    Access Status
    Open access
    Authors
    Giorgi, G.
    Teunissen, Peter
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Giorgi, G. and Teunissen, P.J.G. 2013. Low-Complexity Instantaneous Ambiguity Resolution with the Affine-Constrained GNSS Attitude Model. IEEE Transactions on Aerospace and Electronic Systems. 49 (3): pp. 1745-1759.
    Source Title
    IEEE Aerospace and Electronic Systems Magazine
    DOI
    10.1109/TAES.2013.6558017
    ISSN
    0885-8985
    Remarks

    Copyright © 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    URI
    http://hdl.handle.net/20.500.11937/14997
    Collection
    • Curtin Research Publications
    Abstract

    In this contribution a new approach to ambiguity resolution for Global Navigation Satellite System (GNSS)-based attitude estimation applications is discussed and tested. This approach enhances the observation model by means of additional linear constraints. These constraints are implicitly derived by applying an affine transformation to the unknown real-valued parameters, and largely aid the integer ambiguity estimation through an improved float estimation. The new method is characterized by a lower computational complexity than a rigorous nonlinearly-constrained GNSS attitude model, and at the same time it guarantees higher performance than unconstrained, and therefore weaker, models. The ambiguity resolution performance of the affine-constrained approach is tested through a series of simulated as well as actual data sets, demonstrating the validity and usefulness of the proposed approach for multi-antenna GNSS-based attitude determination applications.

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