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Proceedings Paper

Adaptive optics Η2-optimal control design applied on an experimental setup
Author(s): Karel Hinnen; Michel Verhaegen; Niek Doelman
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Paper Abstract

Most adaptive optics systems (AO) are based on a simple control law that is unable to account for the temporal evolution of the wavefront. In this paper, a recently proposed data-driven Η2-optimal control approach is demonstrated on an AO laboratory setup. The proposed control approach does not assume any form of decoupling and can therefore exploit the spatio-temporal correlation in the wavefront. The performance of the optimal control approach is compared with a conventional method. An analysis of the dominant error sources shows that the optimal control approach leads to a significant reduction in the temporal error. Since the temporal error grows with the Greenwood to sampling frequency ratio, the performance gain is especially large at large ratios.

Paper Details

Date Published: 28 June 2006
PDF: 12 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62722S (28 June 2006); doi: 10.1117/12.672126
Show Author Affiliations
Karel Hinnen, Delft Ctr. for Systems and Control (Netherlands)
Michel Verhaegen, Delft Ctr. for Systems and Control (Netherlands)
Niek Doelman, TNO Science and Industry (Netherlands)

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

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