Title

Analysis Of A Sateffite Communication Channel: Optical Scintifiations And Fade Statistics

Keywords

Atmospheric optics; Detection; Propagation; Satellites; Scintillation

Abstract

Estimates of the fractional fade time, expected number of fades, and mean duration of fade time associated with a transmitted Gaussian-beam wave are developed for uplink laser satellite-communication channels and compared with similar results based on a spherical wave model. Weak fluctuation theory using the lognormal model is applicable for zenith angles less than 60°. Because spot size and off-axis scintillations are significant in the Gaussian-beam wave model but not for the spherical wave model, pointing errors become an important consideration in a reliable laser communication link. Off-axis scintillations increase even more rapidly for large diameter beams and can in some cases lead to a scintillation saturation for pointing errors greater than 1 μrad off the optical beam axis.

Publication Date

10-14-1996

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

2828

Number of Pages

189-197

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.254167

Socpus ID

71049153187 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/71049153187

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