It's good to see LIDAR in the news! I work at Advanced Scientific Concepts (FPGA engineer), our flash LIDAR is 128x128, works out to several kilometers, and will be on the OSIRIS-Rex project to scoop some stuff up from an asteroid and return it to Earth - it's pretty wild.

We are developing a system for topology mapping like this specifically.

Check the mission out: http://www.asteroidmission.org/ and the company! http://www.advancedscientificconcepts.com/

If anybody is interested, send me a message.