4 ms·
I agree with your analysis here minus one nit: > Their calculation needs to know where the plane really is [...] but you don't know in the real world ADS-B O
by tonyarkles 7y ago
I agree with your analysis here minus one nit:
> Their calculation needs to know where the plane really is [...] but you don't know in the real world
ADS-B Out from the aircraft will give you a pretty good idea where the aircraft is. Whether it's accurate enough for this attack is hard to know without doing some research, but it does transmit position.
- t0mas88 7y agoTrue, but it's a delayed position so I'm not sure it would help you create a signal that combines correctly with the original accurately enough.
- tonyarkles 7y agoI'm not sure what you mean by "delayed". Retrieving it from a web service might be delayed, but if you've got a radio receiver on the ground it's going to be pretty close to real-time. Plus, since they don't turn on a dime, doing motion prediction would be pretty straightforward.
- parsimo2010 7y agoIt is delayed by at most 1 second plus the update rate of the GPS (about 0.1 seconds), and gives current heading and speed. WAAS receivers are accurate to a few meters. For a plane following an instrument approach to intercept the ILS, it would be trivial to predict their real-time position given the information available.