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Proceedings Paper

Adaptive combining of coherently detected optical PPM signals in the presence of atmospheric turbulence via focal plane arrays
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Paper Abstract

Adaptive combining of experimentally obtained heterodyned pulse position modulated (PPM) signals with pulse-to-pulse coherence, in the presence of simulated spatial distortions resembling atmospheric turbulence, is demonstrated. The adaptively combined PPM signals are phased up via an LMS algorithm suitably optimized to operate with PPM in the presence of additive shot-noise. A convergence analysis of the algorithm is presented, and results with both computer simulated and experimentally obtained PPM signals are analyzed.

Paper Details

Date Published: 11 November 2004
PDF: 12 pages
Proc. SPIE 5572, Optics in Atmospheric Propagation and Adaptive Systems VII, (11 November 2004); doi: 10.1117/12.565301
Show Author Affiliations
Michela Munoz Fernandez, California Institute of Technology (United States)
Jet Propulsion Lab. (United States)
Victor A. Vilnrotter, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 5572:
Optics in Atmospheric Propagation and Adaptive Systems VII
John D. Gonglewski; Karin Stein, Editor(s)

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