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Proceedings Paper

Aperture averaging of optical scintillations in the atmosphere: experimental results
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Paper Abstract

The aperture averaging factor is a measurement of the ratio of the atmospheric turbulence-induced irradiance scintillations incident on a receiver with diameter D to those incident on a point receiver. Characterizing the amount of aperture averaging in an optical receiver system will allow for tradeoffs to be made between the error performance of an optical receiver and the size and weight of the receiver. Aperture averaging theory has been extensively developed for optical wave propagation in weak turbulence conditions. A lack of experimental aperture averaging data over a variety of turbulence strengths, test range characteristics, and aperture diameters restricts progress in the development of useable propagation models. Experimental measurements of the aperture averaging factor collected over a test range at the University of Maryland are presented here. The impact of this data on the design of free space optical communication receivers will be discussed.

Paper Details

Date Published: 25 May 2005
PDF: 12 pages
Proc. SPIE 5793, Atmospheric Propagation II, (25 May 2005); doi: 10.1117/12.606020
Show Author Affiliations
Linda M. Wasiczko, Naval Research Lab. (United States)
Christopher C. Davis, Univ. of Maryland/College Park (United States)

Published in SPIE Proceedings Vol. 5793:
Atmospheric Propagation II
Cynthia Y. Young; G. Charmaine Gilbreath, Editor(s)

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