2 ms·
But accuracy of GPS signal is in microseconds, so if you suddenly detect a change in level of milliseconds (latency between A and B) - that would totally imply
by keymone 8y ago
But accuracy of GPS signal is in microseconds, so if you suddenly detect a change in level of milliseconds (latency between A and B) - that would totally imply spoofing shenanigans?
- pjc50 8y agoYes, which would manifest as a sudden movement of place detected. What I'm not sure about is what this looks like as you approach the jammer and its signal gradually overwhelms some or all of the signals; does it just look like multipath error.
- keymone 8y agoObviously I don’t know what I’m talking about, but it seems like such attack is only undetectable by cold gps device that has been offline for longer than some period of time, long enough to explain time shift by clock drift.