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Proceedings Paper

Anew High Speed Two-Dimensional Ccd Atmospheric Turbulence Monitor
Author(s): A Howard Waldie; David B Soules; James J Drexler; Frank D Eaton; William A Peterson; John R Hines
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Paper Abstract

A new atmospheric turbulence monitor utilizes relative motion between dual images of a single star, formed by two subapertures of a Schmidt-Cassegrain telescope, to calculate Fried's atmospheric seeing parameter, r0. Dual images are formed on a two-dimensional CCD array, and intensity at each pixel location is digitized for calculations by the host computer. Flexibility in frame rate, exposure time, and data processing are incorporated into the system design through extensive use of programmable array logic, state machines, and microcomputer control. The equipment eliminates many problems characteristic of current systems which use one-dimensional detectors and a single image.

Paper Details

Date Published: 10 August 1988
PDF: 12 pages
Proc. SPIE 0926, Optical, Infrared, Millimeter Wave Propagation Engineering, (10 August 1988); doi: 10.1117/12.945792
Show Author Affiliations
A Howard Waldie, Lockheed-EMSCO (United States)
David B Soules, Lockheed-EMSCO (United States)
James J Drexler, Lockheed-EMSCO (United States)
Frank D Eaton, Atmospheric Sciences Laboratory (United States)
William A Peterson, Atmospheric sciences Laboratory (United States)
John R Hines, Atmospheric Sciences Laboratory (United States)

Published in SPIE Proceedings Vol. 0926:
Optical, Infrared, Millimeter Wave Propagation Engineering
Norman S. Kopeika; Walter B. Miller, Editor(s)

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