Engineering Innovation Podcast and Radio Series

Tricking GPS

PostedOctober 12, 2008

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Randy Atkins: G-P-S receivers triangulate signals from satellites to pinpoint locations. While it’s well known they can be jammed by nonsense signals, such an attack is obvious to detect.  More troubling may be what Virginia Tech engineer Brent Ledvina and his colleagues have done.

Brent Ledvina:  We can be very, very sly in how we trick that receiver.

Randy Atkins: They’ve built a device that creates fake signals a G-P-S receiver can’t distinguish from the real thing.

Brent Ledvina: You could very, very intelligently trick a GPS receiver into believing it’s somewhere it’s not or believing the time is different than it actually is.

Randy Atkins: Ledvina says it’s potentially dangerous, since crucial services like banking, power and airplanes use G-P-S.  He hopes the spoofing device will inspire countermeasures.  With the National Academy of Engineering, Randy Atkins, 103 point 5 F-M, WTOP Radio.