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System identification and tuning applied to pseudo open loop control in multi-conjugate adaptive optics

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Abstract

Pseudo open loop control is a robust control technique for use in multi-conjugated adaptive optics systems for wide-field atmospheric turbulence compensation. This control technique helps to minimize the deleterious effects of optical defects in the system. We propose to use system identification on open-loop and closed-loop and frequency response analysis to achieve a better tuning and characterization of a POLC system. Our results show that system identification can be used to determine the robustness of the system, and can also be used to obtain a model for system tuning.

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Acknowledgements

This work was supported by the Serrapilheira Institute (grant number Serra-1709-18844) and CNPq grant number 311726/2018-6.

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Authors and Affiliations

  1. Department of Electrical Engineering, Universidade Tecnológica Federal do Paraná (UTFPR), Curitiba, PR, 80230-901, Brazil

    Alexandre J. T. S. Mello, Elder Oroski, Victor B. Frencl & Daniel R. Pipa

  2. Osservatorio Astrofisico di Arcetri (INAF), 50125, Firenze, Italy

    Guido Agapito

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  1. Alexandre J. T. S. Mello
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  2. Elder Oroski
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  3. Victor B. Frencl
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  4. Guido Agapito
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  5. Daniel R. Pipa
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Correspondence to Alexandre J. T. S. Mello.

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Mello, A.J.T.S., Oroski, E., Frencl, V.B. et al. System identification and tuning applied to pseudo open loop control in multi-conjugate adaptive optics. J Astrophys Astron 43, 61 (2022). https://doi.org/10.1007/s12036-022-09846-3

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  • DOI: https://doi.org/10.1007/s12036-022-09846-3

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