Paper
28 June 2006 Adaptive optics Η2-optimal control design applied on an experimental setup
Karel Hinnen, Michel Verhaegen, Niek Doelman
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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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Karel Hinnen, Michel Verhaegen, and Niek Doelman "Adaptive optics Η2-optimal control design applied on an experimental setup", Proc. SPIE 6272, Advances in Adaptive Optics II, 62722S (28 June 2006); https://doi.org/10.1117/12.672126
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CITATIONS
Cited by 2 scholarly publications and 1 patent.
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KEYWORDS
Adaptive optics

Wavefronts

Atmospheric modeling

Actuators

Error analysis

Data modeling

Control systems

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