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Proceedings Paper

Denominator-free control algorithms for adaptive optics
Author(s): J. C. Shelton
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Paper Abstract

A class of control algorithms for adaptive optics is presented which does not use or require division in the centroid portion of the control processing. It is shown by theory and observation that the denominator-free algorithms perform significantly better than standard control algorithms, particularly in high- or variable-background situations. The use of this technique made possible the natural-guide-star observation of, among other things, the inner coma of comet Hale-Bopp close to the Sun and of the object GCS 2721:2316 at magnitude V=13.7.

Paper Details

Date Published: 17 October 1997
PDF: 5 pages
Proc. SPIE 3126, Adaptive Optics and Applications, (17 October 1997); doi: 10.1117/12.290162
Show Author Affiliations
J. C. Shelton, Univ. of Arizona Steward Observatory (United States)

Published in SPIE Proceedings Vol. 3126:
Adaptive Optics and Applications
Robert K. Tyson; Robert Q. Fugate, Editor(s)

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