Title :
Quantifying the Size of a Lidar Footprint: A Set of Generalized Equations
Author_Institution :
Dept. of Geogr., Univ. of California-Los Angeles, Los Angeles, CA
fDate :
7/1/2008 12:00:00 AM
Abstract :
Light detection and ranging (lidar) technologies provide a practical solution to 3D terrain mapping through laser ranging and scanning technologies. A lidar footprint, which is the critical parameter describing the size of a laser sampling area, varies with the scanning geometry and the local topography encountered. Integrating the effects of the scanning geometry and terrain orientations, this letter analyzes the intersection geometry of a laser beam and the terrain and develops a set of rigorous generalized footprint equations on inclined terrain for both across-track and Palmer scanning systems.
Keywords :
optical radar; remote sensing by laser beam; terrain mapping; topography (Earth); 3D terrain mapping; Palmer scanning systems; across track scanning systems; generalized equation set; generalized footprint equations; inclined terrain; laser ranging technologies; laser sampling area size; laser scanning technologies; laser-terrain intersection geometry; lidar footprint size quantification; lidar technologies; light detection and ranging; local topography; scanning geometry; terrain orientations; Across-track scanning; Palmer scanning; footprint; terrain mapping;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2008.916978
