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Proceedings Paper

Effects Of The Receiving Aperture Size On Atmospheric Laser Scintillation Measurements
Author(s): G. Conforti; A. Consortini; J. H. Churnside; R. J. Hill
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Paper Abstract

Experimental investigations ofilgser scintillation through atmospheric turbulence require measurements of irradiance at points in the space. Theories are usually in terms of the irradiance at points; therefore point-aperture results are easier to interpret. Also, the statistics of irradiance at points give more complete information than does aperture-averaged irradiance. Practical reasons however require use of apertures of non-negligible dimensions. Extremely small apertures imply extremely low signal levels and low signal to-noise ratio giving rise to poor measurements. One is therefore faced with the problem of choosing aperture sizes that represent a reasonable compromise between the two opposite requirements. It is therefore important to know whether or not use of a given aperture size simulates a point measurement.

Paper Details

Date Published: 28 March 1989
PDF: 4 pages
Proc. SPIE 1029, Scattering and Diffraction, (28 March 1989); doi: 10.1117/12.950382
Show Author Affiliations
G. Conforti, IROE-CNR (Italy)
A. Consortini, Dept. of Physics-University (Italy)
J. H. Churnside, NOAA-Wave Propagation Laboratory (United States)
R. J. Hill, NOAA-Wave Propagation Laboratory (United States)

Published in SPIE Proceedings Vol. 1029:
Scattering and Diffraction
Hedzer A. Ferwerda, Editor(s)

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