28 June 2006 Digital vs. analog comparison of adaptive optics systems
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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.
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Douglas P. Looze, "Digital vs. analog comparison of adaptive optics systems", Proc. SPIE 6272, Advances in Adaptive Optics II, 627238 (28 June 2006); doi: 10.1117/12.672416; https://doi.org/10.1117/12.672416
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