DocumentCode
863357
Title
Dynamic analysis of the activley controlled segmented mirror of the W. M. Keck ten-meter telescope
Author
Aubrun, Jean-Noel ; Lorell, K. ; Mast, Terry S. ; Nelson, Jerry E.
Author_Institution
Lockheed Palo Alto Research Laboratory, Palo Alto, CA, USA
Volume
7
Issue
6
fYear
1987
fDate
12/1/1987 12:00:00 AM
Firstpage
3
Lastpage
10
Abstract
The W. M. Keck Observatory and Telescope are presently under construction on Mauna Kea, Hawaii. When completed in 1990, the telescope will be the world´s largest instrument for astronomical observations at visible and infrared wavelengths. The primary mirror has a diameter of 10 m and consists of a mosaic of 36 hexagonal segments, with the orientation of each segment actively controlled. This paper presents an analysis of the dynamic interaction between the segment control system and the telescope structure. Results from computer simulations show improvement in image quality achieved by the control system in response to environmental wind disturbances.
Keywords
Adaptive control; Telescopes; Apertures; Control systems; Image quality; Image segmentation; Instruments; Mirrors; Optical design; Space technology; Spatial resolution; Telescopes;
fLanguage
English
Journal_Title
Control Systems Magazine, IEEE
Publisher
ieee
ISSN
0272-1708
Type
jour
DOI
10.1109/MCS.1987.1105386
Filename
1105386
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