[time-nuts] GPS Spoofing

[Chris Albertson]

I boat?  The backup is a competent captain.  He'd see the compass heading
move and quickly disengage the autopilot.   I had a boat for years  I'd
notice a 5 degree change.  Mine was a sailboat so I'd be more sensitive to
heading changes than a power boater but still the human is the backup.

Most autopilots don't directly follow GPS, they use GPS to determine a
heading, follow it then use GPS to detect drift and re-compute the heading.
 the heading would be held by a compass sensor in a low-cost setup or in a
larger setup a lazer ring gyro backed up by a compass.     So a spoofed GPS
would cause the autopilot to "think" there was a bigger crooswnd or current
and make a bigger heading change.

I bet you could hijack a drone not a manned vehicle the pilot is trained to
monitor the automation and he'd very quickly turn it off thinking it was
broken.






On Fri, Jul 26, 2013 at 8:41 AM, J. Forster <jfor at quikus.com> wrote:

> Prof. Humphry from Texas just reported being able to spoof GPS in the Med
> and take over the nav system of a luxury yacht. He's done this before with
> a drone in the US.
>
> LORAN as a backup, at least?
>
> -John
>
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-- 

Chris Albertson
Redondo Beach, California