4 ms·
Since there are so many experts on the thread, say these are deployed in every car on the road. How will one tell its own laser reflection from everybody else's
by melted 11y ago
Since there are so many experts on the thread, say these are deployed in every car on the road. How will one tell its own laser reflection from everybody else's, if there's a hundred lidars per city block scanning simultaneously?
- owenversteeg 11y agoLight travels really fast. As each pulse has an extremely short length, and there aren't that many scans per second comparative to the lengths of the pulses, collisions should be rare. When you do have a collision, it will look completely different from the pulses around it, so you can easily discard it.
- melted 11y agoAre you guessing or do you know this for a fact? I know that in radars for example this is dealt with using matched filters (i.e. filters tuned to extract known, but delayed signal through correlation), but that requires continuous, modulated signal.