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Control System Design

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Modeling and Control of Magnetic Fluid Deformable Mirrors for Adaptive Optics Systems

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Abstract

This chapter presents a summary of the control approaches used to regulate the deformable mirror surface shape in AO systems. In Sect. 6.1, the different control strategies proposed in the literature to regulate the deformable mirror surface shape in AO systems are reviewed and organized into four categories, namely, classical decentralized control methods, centralized optimal control methods, distributed control methods, adaptive control methods, and others. The control problem for magnetic fluid deformable mirrors (MFDMs) is formulated in Sect. 6.2. The control system architecture for MFDM-based AO systems is first presented. Such systems typically include three major components, namely, a wavefront sensor, an MFDM wavefront corrector, and a controller. To simplify the implementation of the closed-loop control system and the testing of the performance of the proposed control algorithms, an equivalent closed-loop system configuration is formulated. The summary follows in Sect. 6.3.

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Authors and Affiliations

  1. Shanghai University, Shanghai, China, People’s Republic

    Zhizheng Wu

  2. University of Toronto, Toronto, Ontario, Canada

    Azhar Iqbal & Foued Ben Amara

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  1. Zhizheng Wu
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  2. Azhar Iqbal
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  3. Foued Ben Amara
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Correspondence to Zhizheng Wu .

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Wu, Z., Iqbal, A., Amara, F.B. (2013). Control System Design. In: Modeling and Control of Magnetic Fluid Deformable Mirrors for Adaptive Optics Systems. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32229-7_6

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  • DOI: https://doi.org/10.1007/978-3-642-32229-7_6

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-32228-0

  • Online ISBN: 978-3-642-32229-7

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