Analysis of rapid C[sub n][sup 2] fluctuations observed during a 5-km communication link experiment
Name
Yarnall-2009-Analysis of rapid Cn2 fluctuations observed during a 5 km communication link experiment.pdf
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Author(s)
Yarnall, Timothy M.
Michael, Steven
Moores, John D.
Parenti, Ronald R.
Wilcox, William E., Jr.
Date Issued
May 2009
Journal
Proceedings of SPIE--the International Society for Optical Engineering
Publisher
Society of Photo-optical Instrumentation Engineers
Citation
Yarnall, Timothy M. et al. “Analysis of rapid C[sub n][sup 2] fluctuations observed during a 5-km communication link experiment.” Atmospheric Propagation VI. Ed. Linda M. Wasiczko Thomas & G. Charmaine Gilbreath. Orlando, FL, USA: SPIE, 2009. 73240B-7. © 2009 SPIE
Version
Final published version
Abstract
The path-integrated turbulence strength is usually thought of as a parameter that varies slowly with time. In a recent free-space communications experiment the C[subscript n][superscript 2] n value over a 5-km horizontal path was monitored almost continuously for a period of nearly a month. In addition to well defined and repeatable diurnal fluctuations, strong short-term fluctuations were observed in which the turbulence strength changed by an order of magnitude within a period of minutes. These rapid changes were independently measured by a commercial scintillometer and the high-rate output from the communications transceiver. The characteristics and probable causes for these dynamic atmospheric events and their impact on the design of free-space communication systems are discussed in this article.
MIT Department
Lincoln Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1117/12.818795
