I had an opportunity to compare two lightweight LiDAR sensors today that are both candidates for the UAS platforms that everyone is talking about. The first is the Velodyne HDL-32E which weighs only 1 kg, sells for under $50k and can collect 700,000 pts./second.
The second is the Riegl VUX-1 which is being offered as the first survey-grade UAS laser scanner. This unit weighs slightly less than 4 kg and can collect up to 500,000 pts./sec. The price for this unit has not been announced.
I also had a briefing on the Leica AHAB Chiroptera, a combined topographic and bathymetric LiDAR system for near shore applications. This system also includes an RGB camera and can be used with a gyro mount. This systems sells in the range of $1.5 million Swiss francs and represents some of the most sophisticated LiDAR technology on the market.