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    On GNSS acceptance tests

    136653_19871_56144.pdf (560.8Kb)
    Access Status
    Open access
    Authors
    Teunissen, Peter
    Verhagen, S.
    Date
    2007
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Teunissen, P.J.G. and Verhagen, S. 2007. On GNSS acceptance tests, in Proceedings of the International Global Navigation Satellite Systems Society IGNSS Symposium, Dec 4-6 2007. Sydney: IGNSS.
    Source Title
    Proceedings of the International Global Navigation Satellite Systems Society IGNSS Symposium 2007
    Source Conference
    Proceedings of the International Global Navigation Satellite Systems Society IGNSS Symposium 2007
    ISBN
    9780646483535
    School
    Department of Spatial Sciences
    Remarks

    Reproduced with permission of IGNSS (the International Global Navigation Satellite Systems Society) http://www.ignss.org/

    URI
    http://hdl.handle.net/20.500.11937/24832
    Collection
    • Curtin Research Publications
    Abstract

    Integer carrier phase ambiguity resolution is the key to fast and high precision global navigation satellite system (GNSS) positioning and application. Apart from integer estimation, also acceptance tests are part of the ambiguity resolution process. A popular acceptance test is the so-called ratio-test. In this contribution we study the properties and the underlying concepts of the ratio-test. We discuss some misconceptions of the ratio-test and in particular show that the ratio-test is not a test for testing the correctness of the integer least-squares solution. We also show that the common usage of the ratio-test with a fixed critical value has shortcomings. Instead, the fixed failure rate approach is recommended. This approach, which is part of the more general theory of integer aperture estimation, has the advantage that the times to first fix are reduced, while it is guaranteed that the failure rate does not exceed a user-defined value. Results of the fixed failure-rate ratio test are illustrated with a number of examples.

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