8 ms·
It is likely to be similar to how a dozen or more GPS sats can use the same frequency at once without interfering with each other. The outgoing signal from eac
by CamperBob2 11mo ago
It is likely to be similar to how a dozen or more GPS sats can use the same frequency at once without interfering with each other. The outgoing signal from each satellite is modulated with a maximal-length shift register sequence for that specific bird, each sequence being chosen for both minimal autocorrelation with itself and minimal cross-correlation with the others.
I'm not aware of the inner workings of automotive lidar, but I can't imagine building one that didn't work that way.
- addaon 11mo agoSee my other comments in this discussion. For long m-range pulsed LiDAR, full modulation is not feasible due to the firing circuits used. Minimal modulation can be used, and jitter injection means that any incident is likely to effect a single sample, not be repeated; but the main protection is narrow field of view and a duty cycle well under 0.1%.