Optimal AO control with NGS/LGS wavefront sensors: the multirate case

Caroline Kulcsár; Henri-François Raynaud; Cyril Petit; Jean-Marc Conan

doi:10.1117/12.857564

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28 July 2010 Optimal AO control with NGS/LGS wavefront sensors: the multirate case

Caroline Kulcsár, Henri-François Raynaud, Cyril Petit, Jean-Marc Conan

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Proceedings Volume 7736, Adaptive Optics Systems II; 773614 (2010) https://doi.org/10.1117/12.857564
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

We present the minimum variance control solution for an AO system featuring several NGS/LGS wavefront sensors operating at different sampling rates. We show that the optimal solution is based on a non-stationary Kalman filter. A simple sequential implementation is proposed, with one update equation per sensor. A stationary suboptimal solution is also derived.

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Caroline Kulcsár, Henri-François Raynaud, Cyril Petit, and Jean-Marc Conan "Optimal AO control with NGS/LGS wavefront sensors: the multirate case", Proc. SPIE 7736, Adaptive Optics Systems II, 773614 (28 July 2010); https://doi.org/10.1117/12.857564

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