4 ms·
Wait a minute. WTF? If the system sends signals EXACTLY every 30 minutes, then a very careful reconstruction of signal running times (combined of course with t
by sentenza 13y ago
Wait a minute. WTF?
If the system sends signals EXACTLY every 30 minutes, then a very careful reconstruction of signal running times (combined of course with the positions of the recieving antennae and the EXACT times the signals were recieved) can reveal information about the heading and position.
- ericd 13y agoThat's a good point, if the timestamps have the necessary precision and their clock drift info hasn't been lost by a resync since then. I'd guess that since exact time isn't crucial to the purpose of these messages, though, that they probably don't have very high precision timestamps. :-(