4 ms·
In addition to safety I wonder about interference. Wouldn't lidar become ineffective if there's so much lidar around that all the lidar sources start interferin
by bdamm 7y ago
In addition to safety I wonder about interference. Wouldn't lidar become ineffective if there's so much lidar around that all the lidar sources start interfering with each other and effectively blinding all receivers with noise? I really wonder why lidar-based autonomous agents plan to deal with this problem. It seems fundamental.
- namibj 7y agoUsually not. They require resilience against ambient light already, so they are either very dim and use coding gains or they use short pulses which only yield a short time window for valid returns. You basically don't get non-malicious interference issues, except for e.g. the dot projector systems. Real ToF sensors can easily filter any accidental noise. You can often spoof them, however, and there's not much one can do against it considering a blinding DoS is often technically easier (track the LIDAR with a camera to keep the laserpointer on-target)
- swiley 7y agoThey probably use PRN codes with low self correlation.