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Decoupled control analysis of a large flexible space antenna with linear quadratic regulator comparisonsA decoupled-control analysis was performed for a large flexible space antenna. Control involved commanding changes in the rigid-body modes or nulling disturbances in the flexible modes. The study provides parametric-type data which could be useful in the final design of a large space antenna control system. Results are presented to illustrate the effect on control requirements of (1) the number of modes controlled; (2) the number, type, and location of control actuators; and (3) variations in the closed-loop dynamics of the control system. Comparisons are given between the decoupled-control results and those obtained by using a linear quadratic regulator approach. Time history responses are presented to illustrate the effects of the control procedures.
Document ID
Document Type
Technical Publication (TP)
Young, J. W.
(NASA Langley Research Center Hampton, VA, United States)
Hamer, H. A.
(NASA Langley Research Center Hampton, VA, United States)
Johnson, K. G.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
May 1, 1984
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
NAS 1.60:2293
Accession Number
Funding Number(s)
PROJECT: RTOP 506-57-13-01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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