Foliage penetration is a major application of airborne lidar systems. Typical ground resolutions
achieved for floodplain-mapping applications are of the order of meters. Much higher ground resolution
can be achieved by integrating multiple looks from several look-angles. This paper describes a new system
that can achieve very high ground sampling densities in forested environments at significant altitudes (6 kft) using a modified commercial lidar and a custom gimbal system. Absolute calibration of the gimbal
system demonstrated pointing knowledge comparable to the usual aircraft-fixed lidar performance (0.1-0.2
mrad). Bare-earth processing of the resultant data enables interactive virtual deforestation relative to a high-resolution ground.
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