A ground-based method is disclosed which determines the spatial statistics of fragmented and spatially variably dispersed objects in a transmissive medium, by generating a plurality of pulsed beams of laser energy, the beams having selectively variable width and shape; selectively varying the width and...http://www.google.com/patents/US7187452?utm_source=gb-gplus-sharePatent US7187452 - Lidar system and method
