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Antenna pointing of large flexible telecommunications spacecraftAttitude control problems for large flexible telecommunications spacecraft were investigated. A typical S/C configuration is described and modeled by modal data derived from a finite element analysis. The effect of structural flexibility on radio-frequency sensor is analyzed. Model reduction using modal gain considerations is applied. Two control concepts are investigated: separate central body and antenna pointing control using direct feedback laws, centralized control using modal observer and optimal control. Performances of each concept and the algorithm implementation are assessed.
Document ID
19850022843
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Govin, B. (MATRA Espace Paris-Velizy, France)
Bousquet, A. (MATRA Espace Paris-Velizy, France)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: JPL Proc. of the Workshop on Identification and Control of Flexible Space Struct., Vol. 1
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
85N31156
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19850022835Collected WorksProceedings of the Workshop on Identification and Control of Flexible Space Structures, volume 1
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