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Experimental study of adaptive pointing and tracking for large flexible space structuresThis paper describes an experimental study of adaptive pointing and tracking control for flexible spacecraft conducted on a complex ground experiment facility. The algorithm used in this study is based on a multivariable direct model reference adaptive control law. Several experimental validation studies were performed earlier using this algorithm for vibration damping and robust regulation, with excellent results. The current work extends previous studies by addressing the pointing and tracking problem. As is consistent with an adaptive control framework, the plant is assumed to be poorly known to the extent that only system level knowledge of its dynamics is available. Explicit bounds on the steady-state pointing error are derived as functions of the adaptive controller design parameters. It is shown that good tracking performance can be achieved in an experimental setting by adjusting adaptive controller design weightings according to the guidelines indicated by the analytical expressions for the error.
Document ID
19910065033
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Boussalis, D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bayard, D. S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ih, C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wang, S. J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ahmed, A.
(JPL Pasadena, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 91-2691
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference
Location: New Orleans, LA
Country: United States
Start Date: August 12, 1991
End Date: August 14, 1991
Accession Number
91A49656
Distribution Limits
Public
Copyright
Other

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