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    An Evaluation of the Vestigial Signal Defense for Civil GPS Anti-Spoofing

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    Date
    2011
    Author
    Wesson, Kyle D.
    Shepard, Daniel P.
    Bhatti, Jahshan A.
    Humphreys, Todd E.
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    Abstract
    A receiver-autonomous non-cryptographic civil GPS antispoofing technique called the vestigial signal defense (VSD) is defined and evaluated. This technique monitors distortions in the complex correlation domain to detect spoofing attacks. Multipath and spoofing interference models are developed to illustrate the challenge of distinguishing the two phenomena in the VSD. A campaign to collect spoofing and multipath data is described, which specific candidate VSD techniques can be tested against. Test results indicate that the presence of multipath complicated the setting of an appropriate spoofing detection threshold.
    Department
    Aerospace Engineering and Engineering Mechanics
    Subject
    Wesson
    Shepard
    Bhatti
    Humphreys
    GPS anti-spoofing
    GNSS
    URI
    http://hdl.handle.net/2152/63296
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    • Radionavigation Laboratory Conference Proceedings

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