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Proceedings Paper

Digital vs. analog comparison of adaptive optics systems
Author(s): Douglas P. Looze
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Paper Abstract

This paper presents an equivalent discrete-time model that combines the D-A converter, DM, and WFS. The performance of the adaptive optics loop can then be evaluated in terms of the discrete-time (Z) closed-loop transfer functions of the feedback loop. The closed-loop transfer functions using this discrete-time model are compared to those obtained from an analog model. A simulation shows that the digital model produces accurate stability evaluations.

Paper Details

Date Published: 28 June 2006
PDF: 8 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 627238 (28 June 2006); doi: 10.1117/12.672416
Show Author Affiliations
Douglas P. Looze, Univ. of Massachusetts, Amherst (United States)


Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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