Comment Re:LiDAR solves for vegetation (Score 4, Informative) 31
Which class of laser are they using which can penetrate the canopy of a jungle?
The standard is 1064 nm infrared and 532 nm green (actually 1064nm doubled).
The IR is absorbed by water, hence the inclusion of a 532nm wavelength laser.
With a high enough pulse rate, you can penetrate multiple layers of canopy and get excellent resolution.
Also for the larger areas covered it seems like a fixed wing design might be more appropriate.
Fixed wing solutions are neither better nor worse than any other solution.
Planes need a plane, an airfield, a mechanic, fuel, a pilot, and an operator for the LIDAR system.
The benefit of using an octo-copter is that all you need is electricity to charge it.