[time-nuts] "The GPS navigation is the weakest point,"

[Chris Albertson]

On Thu, Dec 15, 2011 at 6:31 PM, Michael Costolo
<michael.costolo at gmail.com> wrote:

> Is there no way to have some validation of the integrity of a GPS signal?

Yes there is.  One way is to cary an inertial navigation system and
compare you position using INS and GPS and if they differ try and
guess which is correct.   You can also have the third nab system that
uses radar to match the topography.   Cruise missile cary all three
but then those were designed to cary atomic warheads.  My bet is this
drone was considered expendable and build as cheaply as something like
this can be built

I doubt one could spoof GPS to the degree required to land an
airplane.  But looks at how straight the skin is, I doubt it crashed
into the ground either.

I suspect this drone did not use any truly sensitive technology as
they had to figure a few would crash or get shot down.

Chris Albertson
Redondo Beach, California