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Optical Engineering

Development and implementation of a robust angle of arrival turbulence measurement system
Author(s): Sean Manning; Bradley A. Clare; Kenneth J. Grant; Kerry A. Mudge
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Paper Abstract

Free space optical communications (FSOC) systems are a promising complement to existing wireless communications technologies. FSOC systems have many significant advantages over traditional radio frequency links, including high bandwidth, no spectrum licensing requirements, low-power consumption, small payloads, low probability of intercept, and greater immunity from interference or jamming. However, atmospheric turbulence (scintillation) imparts significant phase noise onto the laser beam, resulting in intensity fluctuations at the receiver. In order to develop scintillation mitigation strategies, it is necessary to monitor scintillation in parallel to the communications channel. We report on the development and implementation of a robust angle of arrival (AoA) turbulence measurement instrument that is suitable for this task. Several key data acquisition and processing techniques were designed to enhance the reliability and robustness of the scintillation measurement.

Paper Details

Date Published: 11 November 2015
PDF: 9 pages
Opt. Eng. 54(11) 114104 doi: 10.1117/1.OE.54.11.114104
Published in: Optical Engineering Volume 54, Issue 11
Show Author Affiliations
Sean Manning, Defence Science and Technology Group (Australia)
Bradley A. Clare, Defence Science and Technology Group (Australia)
Kenneth J. Grant, Defence Science and Technology Group (Australia)
Kerry A. Mudge, Defence Science and Technology Group (Australia)


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