Lidar system and method
First Claim
1. A ground-based method of determining the spatial statistics of fragmented and spatially variably dispersed objects in a transmissive medium, said method including:
- generating a plurality of pulsed beams of laser energy, said beams having selectively variable width and shape;
selectively varying the width and shape of said beams directing said beams toward the dispersed objects;
measuring the time and/or phase and intensity of signals returned by the dispersed objects, and calculating the apparent reflectance of the dispersed objects as a function of the range of the dispersed objects for each beam width and beam shape.
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Accused Products
Abstract
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 shape of the beams; directing the beams toward the dispersed objects; measuring the time and/or phase and intensity of signals returned by the dispersed objects, and calculating the apparent reflectance of the dispersed objects as a function of the range of the dispersed objects for each beam width and beam shape.
125 Citations
10 Claims
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1. A ground-based method of determining the spatial statistics of fragmented and spatially variably dispersed objects in a transmissive medium, said method including:
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generating a plurality of pulsed beams of laser energy, said beams having selectively variable width and shape;
selectively varying the width and shape of said beams directing said beams toward the dispersed objects;
measuring the time and/or phase and intensity of signals returned by the dispersed objects, and calculating the apparent reflectance of the dispersed objects as a function of the range of the dispersed objects for each beam width and beam shape. - View Dependent Claims (2, 4, 6, 7, 8, 9, 10)
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3. A ground-based system for determining the spatial statistics of fragmented and spatially variably dispersed objects in a transmissive medium, said system including:
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Lidar means for generating a plurality of pulsed beams of laser energy having selectively variable width and shape, for selectively varying the width and shape of said beams, and for directing said beams toward the dispersed objects;
measuring means for measuring the time and/or phase and intensity of signals returned by the dispersed objects, and calculating means for calculating the apparent reflectance of the dispersed objects as a function of the range of the dispersed objects for each beam width and beam shape;
whereby the system is calibrated in accordance with the apparent reflectance calculated. - View Dependent Claims (5)
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Specification