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Proceedings Paper

Performance of a wavelength-diversified FSO tracking algorithm for real-time battlefield communications
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Paper Abstract

Free-space optical (FSO) communications links are envisioned as a viable option for the provision of temporary high-bandwidth communication links between moving platforms, especially for deployment in battlefield situations. For successful deployment in such real-time environments, fast and accurate alignment and tracking of the FSO equipment is essential. In this paper, a two-wavelength diversity scheme using 1.55 μm and 10 μm is investigated in conjunction with a previously described tracking algorithm to maintain line-of-sight connectivity battlefield scenarios. An analytical model of a mobile FSO communications link is described. Following the analytical model, simulation results are presented for an FSO link between an unmanned aerial surveillance vehicle, the Global Hawk, with a mobile ground vehicle, an M1 Abrams Main Battle Tank. The scenario is analyzed under varying weather conditions to verify continuous connectivity is available through the tracking algorithm. Simulation results are generated to describe the performance of the tracking algorithm with respect to both received optical power levels and variations in beam divergence. Advances to any proposed tracking algorithm due to these power and divergence variations are described for future tracking algorithm development.

Paper Details

Date Published: 13 February 2008
PDF: 9 pages
Proc. SPIE 6877, Free-Space Laser Communication Technologies XX, 68770A (13 February 2008); doi: 10.1117/12.763703
Show Author Affiliations
Mouhammad K. Al-Akkoumi, Univ. of Oklahoma-Tulsa (United States)
Alan Harris, Univ. of North Florida (United States)
Robert C. Huck, Univ. of Oklahoma-Tulsa (United States)
James J. Sluss, Univ. of Oklahoma-Tulsa (United States)
Tayeb A. Giuma, Univ. of North Florida (United States)

Published in SPIE Proceedings Vol. 6877:
Free-Space Laser Communication Technologies XX
Steve Mecherle, Editor(s)

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