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Proceedings Paper

System identification and interval analysis of the Green Bank Telescope structure and servo system
Author(s): Trupti Ranka; Mario Garcia-Sanz; Timothy L. Weadon; John Ford
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Paper Abstract

To conduct astronomical observations during windy days and increase the time available for exploration with the Green Bank Telescope (GBT) it is necessary to reduce the sensitivity of the telescope structure to wind forces. A promising approach is to design an advanced robust control system for wind induced vibration attenuation. As a first step it is necessary to (1) model analytically the structure and the servo system of the telescope and (2) validate the model through systems identification experiments. This paper presents the results of the identification experiments of the structure and the servo system along with the subsequent interval analysis.

Paper Details

Date Published: 22 July 2014
PDF: 12 pages
Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 914554 (22 July 2014); doi: 10.1117/12.2056370
Show Author Affiliations
Trupti Ranka, Case Western Reserve Univ. (United States)
Mario Garcia-Sanz, Case Western Reserve Univ. (United States)
Timothy L. Weadon, National Radio Astronomy Ctr. (United States)
John Ford, National Radio Astronomy Ctr. (United States)

Published in SPIE Proceedings Vol. 9145:
Ground-based and Airborne Telescopes V
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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