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Optical Engineering

Acquisition and tracking control of satellite-borne laser communication systems and simulation of downlink fluctuations
Author(s): Masahiro Toyoda
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Paper Abstract

Fluctuation in the intensity of a downlink (satellite-to-ground) laser beam is examined by first measuring the acquisition time and pointing error of a satellite-borne laser communication system. The downlink intensity fluctuation is then simulated using a computer model that takes into account the effects of acquisition and tracking control, satellite attitude perturbation, and intensity fluctuation due to atmospheric turbulence. The simulation shows that when the tracking control-loop is closed, the major portion of the angular variation due to satellite attitude variation is corrected by the tracking control; scarcely any angular error in beam pointing remains.

Paper Details

Date Published: 1 March 2006
PDF: 9 pages
Opt. Eng. 45(3) 036001 doi: 10.1117/1.2183041
Published in: Optical Engineering Volume 45, Issue 3
Show Author Affiliations
Masahiro Toyoda, National Institute of Information and Communications Technology (Japan)


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