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Proceedings Paper

Simultaneous atmospheric extinction and scintillation estimation using a modulated beacon
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Paper Abstract

The authors have recently developed an optical transmissometer device used for estimation of the visibility and atmospheric extinction coefficient along a horizontal or slant terrestrial path of ranges from 500m out to 6 km. This is a bistatic device using a modulated LED beacon transmitter and an 8” (200mm) primary receiver lens with a silicon (Si) photodetector. We discuss how this device can be used to simultaneously obtain an estimate of the atmospheric turbulence characteristics along the same propagation path, using the optical intensity scintillation effect, without requiring any hardware modifications to the existing device. Device principles of operation are presented, followed by the results of a preliminary proof-of-concept field test which yielded encouraging results showing validity of the basic system design but indicating that additional engineering work is required to resolve some implementation details, and further field testing needed to verify and validate the system.

Paper Details

Date Published: 7 October 2014
PDF: 9 pages
Proc. SPIE 9224, Laser Communication and Propagation through the Atmosphere and Oceans III, 92240R (7 October 2014); doi: 10.1117/12.2063682
Show Author Affiliations
Colin N. Reinhardt, SPAWAR Systems Ctr. (United States)
David T. Wayne, SPAWAR Systems Ctr. (United States)
Stephen M. Hammel, SPAWAR Systems Ctr. (United States)

Published in SPIE Proceedings Vol. 9224:
Laser Communication and Propagation through the Atmosphere and Oceans III
Alexander M. J. van Eijk; Christopher C. Davis; Stephen M. Hammel, Editor(s)

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