This paper addresses the problem of reducing the effects of wavefront distortions in ground-based telescopes within a “Modal-Control” framework. The proposed approach allows the designer to optimize the Youla parameter of a given modal controller with respect to a relevant adaptive optics performance criterion defined on a “sampled” frequency domain. This feature makes it possible to use turbulence/vibration profiles of arbitrary complexity (even empirical power spectral densities from data), while keeping the controller order at a moderate value. Effectiveness of the proposed solution is also illustrated through an adaptive optics numerical simulator.

Frequency based design of modal controllers for adaptive optics systems / G. Agapito; G. Battistelli; D. Mari; D. Selvi; A. Tesi; P. Tesi. - In: OPTICS EXPRESS. - ISSN 1094-4087. - ELETTRONICO. - 20:(2012), pp. 27108-27122. [10.1364/OE.20.027108]

Frequency based design of modal controllers for adaptive optics systems

BATTISTELLI, GIORGIO;MARI, DANIELE;SELVI, DANIELA;TESI, ALBERTO;TESI, PIETRO
2012

Abstract

This paper addresses the problem of reducing the effects of wavefront distortions in ground-based telescopes within a “Modal-Control” framework. The proposed approach allows the designer to optimize the Youla parameter of a given modal controller with respect to a relevant adaptive optics performance criterion defined on a “sampled” frequency domain. This feature makes it possible to use turbulence/vibration profiles of arbitrary complexity (even empirical power spectral densities from data), while keeping the controller order at a moderate value. Effectiveness of the proposed solution is also illustrated through an adaptive optics numerical simulator.
2012
20
27108
27122
G. Agapito; G. Battistelli; D. Mari; D. Selvi; A. Tesi; P. Tesi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/780370
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