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Proceedings Paper

Alternate tracking schemes for reducing fade probability
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Paper Abstract

Correlation tracking is investigated as a method for reducing fade probability in free-space laser communication (LaserCom) systems. Challenging operating scenarios can lead to spot breakup in the focal plane image. During moments of spot breakup a traditional centroid tracker can force an intensity valley to the on-axis position and cause unnecessary drops in received power. We investigate alternate tracking schemes to specifically prevent the occurrence of this detrimental mode of operation. Correlation tracking is proposed and evaluated as one approach for improving performance in terms of fade probability. From a broader perspective, we also begin to investigate the phenomenology of deep fades. This approach may lead to additional methods to improve performance in situations where fade probability is the metric of interest.

Paper Details

Date Published: 26 August 2005
PDF: 12 pages
Proc. SPIE 5894, Advanced Wavefront Control: Methods, Devices, and Applications III, 589402 (26 August 2005); doi: 10.1117/12.615228
Show Author Affiliations
Peter N. Crabtree, Air Force Institute of Technology (United States)
Matthew E. Goda, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 5894:
Advanced Wavefront Control: Methods, Devices, and Applications III
Mark T. Gruneisen; John D. Gonglewski; Michael K. Giles, Editor(s)

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