21 July 2014 Kalman filter design for atmospheric tip/tilt, tip/tilt anisoplanatism and focus filtering on extremely large telescopes
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Abstract
This paper discusses Kalman filter design to correct for atmospheric tip/tilt, tip/tilt anisoplanatism and focus disturbances in laser guide star multi-conjugate adaptive optics. Model identification, controller design and computation, command oversampling and disturbance rejection are discussed via time domain analysis and control performance evaluation. End-to-end high-fidelity sky-coverage simulations are presented by Wang and co-authors in a companion paper.
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L. Gilles, L. Gilles, H. F. Raynaud, H. F. Raynaud, C. Correia, C. Correia, L. Wang, L. Wang, B. Ellerbroek, B. Ellerbroek, C. Boyer, C. Boyer, C. Kulcsár, C. Kulcsár, } "Kalman filter design for atmospheric tip/tilt, tip/tilt anisoplanatism and focus filtering on extremely large telescopes", Proc. SPIE 9148, Adaptive Optics Systems IV, 91484L (21 July 2014); doi: 10.1117/12.2057400; https://doi.org/10.1117/12.2057400
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