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Optical Engineering

Precision Pointing And Tracking Between Satellite-Borne Optical Systems
Author(s): K. J. Held; J. D. Barry
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Paper Abstract

The results of an analysis of the precision pointing and tracking accuracy possible between satellite-borne optical linking systems using measured platform disturbance data are discussed. Measured vibration data from the Landsat satellite were used to generate the power spectral density parameter needed to model the baseframe noise environments for the two-satellite system. Three control subsystem configurations were evaluated: gyro-stabilized, mass-stabilized, and complementary filter. The sources of error included in the analysis were sensor noise from the optical detector, host satellite baseframe vibrational noise, and frictional and bearing noise. The results of the study indicate that a 1 µrad rms pointing and tracking accuracy may be achieved with either the gyro-stabilized or the complementary filter approach.

Paper Details

Date Published: 1 April 1988
PDF: 9 pages
Opt. Eng. 27(4) 274325 doi: 10.1117/12.7976677
Published in: Optical Engineering Volume 27, Issue 4
Show Author Affiliations
K. J. Held, Hughes Aircraft Company (United States)
J. D. Barry, Hughes Aircraft Company (United States)

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