Title

Analysis Of Fading In The Propagation Channel For The Orca Laser Communication System

Keywords

Aperture averaging; Fading; Free space optics; Gamma-gamma; Lognormal; Optical communications; ORCA; Scintillation

Abstract

Irradiance data were collected over an air-to-ground path using several different sized receiving apertures. The data were collected from the Optical RF Communications Adjunct (ORCA) tracking beacon. The receiver system consisted of three telescopes of sizes 51 mm, 137 mm, and 272 mm. Probability of fade, number of fades per second, and mean fade time was computed for various intensity levels for irradiance data collected on all three telescopes. These measured statistics are compared to fading models derived from lognormal and gamma-gamma probability density function (PDF) models. Discussion is centered on the viability of these models under various conditions and on the presence of aero-optic effects. The gamma-gamma and lognormal model are found to be insufficient to model all fading statistics. © 2011 SPIE.

Publication Date

6-29-2011

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8038

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.887997

Socpus ID

79959537080 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79959537080

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