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

Michela Munoz Fernandez; Victor A. Vilnrotter

doi:10.1117/12.565301

11 November 2004 Adaptive combining of coherently detected optical PPM signals in the presence of atmospheric turbulence via focal plane arays

Michela Munoz Fernandez, Victor A. Vilnrotter

Author Affiliations +

Proceedings Volume 5572, Optics in Atmospheric Propagation and Adaptive Systems VII; (2004) https://doi.org/10.1117/12.565301
Event: Remote Sensing, 2004, Maspalomas, Canary Islands, Spain

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.

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Michela Munoz Fernandez and Victor A. Vilnrotter "Adaptive combining of coherently detected optical PPM signals in the presence of atmospheric turbulence via focal plane arays", Proc. SPIE 5572, Optics in Atmospheric Propagation and Adaptive Systems VII, (11 November 2004); https://doi.org/10.1117/12.565301

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