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Proceedings Paper

Effect of aerosol speckle phase decorrelation on the allowable signal averaging time for coherent optical receivers
Author(s): J. Fred Holmes; Badih John Rask
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Paper Abstract

It is generally thought that the maximum signal averaging time for coherent (heterodyne) optical receivers is limited by the aerosol speckle phase decorrelation time. Fortunately, for many applications this is not true. It is demonstrated analytically and confirmed by experimental data that for many applications the signal averaging time is limited by the shorter of the laser transmitter or atmospheric turbulence phase decorrelation times. This can have a significant impact on lowering the threshold for signal detection when the fast Fourier transform (maximum likelihood estimator) is used to detect the signal.

Paper Details

Date Published: 14 October 1996
PDF: 6 pages
Proc. SPIE 2828, Image Propagation through the Atmosphere, (14 October 1996); doi: 10.1117/12.254165
Show Author Affiliations
J. Fred Holmes, Oregon Graduate Institute of Science and Technology (United States)
Badih John Rask, Oregon Graduate Institute of Science and Technology (United States)


Published in SPIE Proceedings Vol. 2828:
Image Propagation through the Atmosphere
Christopher Dainty; Luc R. Bissonnette, Editor(s)

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