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Proceedings Paper

Multi-input multi-output identification for control of adaptive optics systems
Author(s): Riccardo Muradore; Johann Kolb; Lorenzo Pettazzi; Enrico Marchetti
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Paper Abstract

In this paper, modern subspace identification methods are applied to a Multi-conjugate Adaptive optics Demonstrator, MAD, developed at ESO. The identified multi-input multi-output systems mapping voltages into slopes can be obtained on data taken in open/closed loop on beacon and in both SCAO and GLAO configurations. The advantages of the proposed approach is twofold: on the one hand the experiment to collect the data takes only few minutes during day time, it can be done on beacon, and all the computational effort is moved off-line. On the other hand, subspace identification provides the mathematical model necessary to design modern model-based controllers (e.g. linear quadratic control).

Paper Details

Date Published: 7 August 2014
PDF: 10 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91484E (7 August 2014); doi: 10.1117/12.2055726
Show Author Affiliations
Riccardo Muradore, Univ. degli Studi di Verona (Italy)
Johann Kolb, European Southern Observatory (Germany)
Lorenzo Pettazzi, European Southern Observatory (Germany)
Enrico Marchetti, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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