Temporal statistics of the beam-wander contribution to scintillation in ground-to-satellite optical links

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Title:	Temporal statistics of the beam-wander contribution to scintillation in ground-to-satellite optical links
Author:	Rodríguez Gómez, Alejandro Antonio; Dios Otín, Víctor Federico; Fernández Rubio, Juan Antonio; Comerón Tejero, Adolfo
Other authors:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
Abstract:	The beam-wander contribution to the scintillation in a ground-to-satellite free-space optical link is one of major importance. An analytical model, based on the duality between beam wander and angle-of-arrival fluctuations, is proposed for the temporal statistics. The expression of the probability density function of the log-amplitude fluctuations is first obtained. Then, the expressions of the spatial and temporal autocovariances are also obtained. We present plots of the beam-wander contribution to the logamplitude variance, as a function of the transmitter aperture size and the turbulence accumulated in the propagation path. We also present the angular fluctuation and log-amplitude scintillation spectrum plots for some selected cases. © 2005 Optical Society of America
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Àrees temàtiques de la UPC::Ciències de la visió -Optics -Signal theory (Telecommunication)
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Document type:	Article - Published version Article
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