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http://dx.doi.org/10.12673/jkoni.2014.18.1.7

Design of GPS L1 C/A Spoofing Signal Detection Algorithm  

Lim, Soon (Satellite Navigation Team, CNS/ATM and Satellite Navigation Research Center, Korea Aerospace Research Institute)
Lim, Deok-Won (Satellite Navigation Team, CNS/ATM and Satellite Navigation Research Center, Korea Aerospace Research Institute)
Heo, Moon-Beom (Satellite Navigation Team, CNS/ATM and Satellite Navigation Research Center, Korea Aerospace Research Institute)
Nam, Gi-Wook (Satellite Navigation Team, CNS/ATM and Satellite Navigation Research Center, Korea Aerospace Research Institute)
Publication Information
Journal of Advanced Navigation Technology / v.18, no.1, 2014 , pp. 7-13 More about this Journal
Abstract
In this paper, an effect on a GPS receiver by spoofing signal is analyzed and a GPS spoofing signal detection algorithm for GPS L1 C/A spoofing signal is proposed. A proposed detection algorithm monitors the correlation function distortion by the spoofing signal. If detected distortion is over a detection threshold, we can determine that the spoofing signal is received. The detection threshold is calculated from the statistical characteristics of a thermal noise. For verifying the suggested algorithm, a MATLAB-based simulation platform is implemented. This platform has functionalities to track GPS signal and measure the correlation values. By using this platform, the correlation function distortion by spoofing signal is observed. Also a performance of the algorithm proposed in this paper is applied and confirm the detection of a spoofing signal.
Keywords
GPS spoofing; Spoofing detection; Correlation function distortion;
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Times Cited By KSCI : 1  (Citation Analysis)
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