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Optical Engineering

Visible laser radar: range tomography and angle-angle-range detection
Author(s): Frederick K. Knight; David I. Klick; Danette P. Ryan-Howard; Joseph R. Theriault
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Paper Abstract

This paper compares two detectors for visible laser radar: a 1-D detector that resolves a target in range and a 3-D detector that resolves a target in angle and range. For both, a short pulse laser illuminates the target. For both, the receiver is based on a streak camera, which detects reflected light from the illuminated target and resolves the light in time. The time resolution is 250 ps, so the target is resolved into 4 cm range cells. The 1-D detector focuses the reflected light to a point. The output is the 1 -D, range-resolved projection of the target. The 3-D detector images the target on a focal plane, which is dissected by a fiber optic image converter attached to the streak camera. The output is a 3-D image of the target. For both detectors, we show data from two simple targets. The paper also compares two methods of remote sensing using these detectors: 2-D range tomography using data from the 1-D detector and angle-angle-range imagery using the 3-D data.

Paper Details

Date Published: 1 January 1991
PDF: 11 pages
Opt. Eng. 30(1) doi: 10.1117/12.55773
Published in: Optical Engineering Volume 30, Issue 1
Show Author Affiliations
Frederick K. Knight, Massachusetts Institute of Technology (United States)
David I. Klick, Massachusetts Institute of Technology (United States)
Danette P. Ryan-Howard
Joseph R. Theriault, Massachusetts Institute of Technology (United States)

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