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Proceedings Paper

Simulation Of Laser Radar Imagery
Author(s): Albert D. Sheffer Jr.; Fred L. Thompson
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Paper Abstract

Software has been developed for the simulation of laser radar range imagery. Two versions have been developed: the first is an idealized model which is noise-free and with zero dropout rate; the second includes both pointing and range noise effects and provides for calculation of probability of detection for each pixel, with dropout occurring for probabilities below threshold, and also allows for user control over a number of other parameters such as scanning convention (unidirectional vs. bidirectional), scan efficiency, and trajectory update rates. Each version allows for motion of a LADAR sensor across a terrain database on which faceted objects (targets and clutter) have been placed. For each pixel the program calculates the laser exit beam direction, based upon the combined effects of the sensor sweep pattern and the motion and attitude of the sensor platform. The exit beam is traced for intersection with the terrain or an object. Program output consists of the x,y,z-coordinates of the intersection point and the (real-number) range to that point for each pixel. This output can then be converted to a displayable range image. The software is currently implemented on a VAX 11/750 computer operating under VMS.

Paper Details

Date Published: 5 August 1986
PDF: 4 pages
Proc. SPIE 0636, Thermal Imaging, (5 August 1986); doi: 10.1117/12.964202
Show Author Affiliations
Albert D. Sheffer Jr., Georgia Tech Research Institute (United States)
Fred L. Thompson, Independent software consultant (United States)

Published in SPIE Proceedings Vol. 0636:
Thermal Imaging
Irving R. Abel, Editor(s)

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