GNSS Signal Authentication Via Power and Distortion Monitoring
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| Authors | Kyle D. Wesson, Jason N. Gross, T. Humphreys, B. Evans |
| Journal/Conference Name | IEEE Transactions on Aerospace and Electronic Systems |
| Paper Category | Aerospace Engineering |
| Paper Abstract | We propose a simple low-cost technique that enables civil global positioning system receivers and other civil global navigation satellite system (GNSS) receivers to reliably detect carry-off spoofing and jamming. The technique, which we call the power-distortion detector, classifies received signals as interference-free, multipath-afflicted, spoofed, or jammed according to observations of received power and correlation function distortion. It does not depend on external hardware or a network connection and can be readily implemented on many receivers via a firmware update. Crucially, the detector can with high probability distinguish low-power spoofing from ordinary multipath. In testing against more than 25 high-quality empirical datasets yielding more than 900,000 separate detection tests, the detector correctly alarms on all malicious spoofing or jamming attacks while maintaining a $<$0.6% single-channel false alarm rate. |
| Date of publication | 2018 |
| Code Programming Language | Matlab |
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