Local ensemble transform Kalman filter, a fast non-stationary control law for adaptive optics on ELTs: theoretical aspects and first simulation results

Morgan Gray 1 Cyril Petit 2 Sergey Rodionov 1 Marc Bocquet 3, 4 Laurent Bertino 5 Marc Ferrari 1 Thierry Fusco 1, 2
1 LAM - Laboratoire d'Astrophysique de Marseille
2 ONERA - The French Aerospace Lab [Châtillon]
3 CEREA - Centre d'Enseignement et de Recherche en Environnement Atmosphérique
4 Clime - Coupling environmental data and simulation models for software integration
Inria Paris-Rocquencourt
5 NERSC - Nansen Environmental and Remote Sensing Center [Bergen]
Abstract : We propose a new algorithm for an adaptive optics system control law, based on the Linear Quadratic Gaussian approach and a Kalman Filter adaptation with localizations. It allows to handle non-stationary behaviors, to obtain performance close to the optimality defined with the residual phase variance minimization criterion, and to reduce the computational burden with an intrinsically parallel implementation on the Extremely Large Telescopes (ELTs).
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Submitted on : Tuesday, September 23, 2014 - 10:52:26 AM
Last modification on : Thursday, October 17, 2019 - 9:40:04 PM
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Morgan Gray, Cyril Petit, Sergey Rodionov, Marc Bocquet, Laurent Bertino, et al.. Local ensemble transform Kalman filter, a fast non-stationary control law for adaptive optics on ELTs: theoretical aspects and first simulation results. Optics Express, Optical Society of America, 2014, 22 (17), pp.20894-20913. ⟨10.1364/OE.22.020894⟩. ⟨hal-01066951⟩

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