Work out lidar point density instantly with clear inputs, formula shown and shareable results.
Angular resolution is the field of view divided by points per scan, and points per scan is the point rate divided by scan frequency. Linear spacing at range is distance times that angle in radians, which is why a target at 30 m gets half the point density of one at 15 m.
Lidar density
points per scan = point rate / scan rate; angular resolution = FOV / points per scan; spacing = range x angle
Point spacing grows linearly with distance, so beyond a certain range a small object falls between beams entirely and returns no points.
Yes, directly. At a fixed point rate, halving the scan frequency doubles the angular resolution but halves the update rate.