Kalman filter design for atmospheric tip/tilt, tip/tilt anisoplanatism and focus filtering on extremely large telescopes

L. Gilles; H. F. Raynaud; C. Correia; L. Wang; B. Ellerbroek; C. Boyer; C. Kulcsár

doi:10.1117/12.2057400

21 July 2014 Kalman filter design for atmospheric tip/tilt, tip/tilt anisoplanatism and focus filtering on extremely large telescopes

L. Gilles, H. F. Raynaud, C. Correia, L. Wang, B. Ellerbroek, C. Boyer, C. Kulcsár

Author Affiliations +

Proceedings Volume 9148, Adaptive Optics Systems IV; 91484L (2014) https://doi.org/10.1117/12.2057400
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

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.

Citation Download Citation

L. Gilles, H. F. Raynaud, C. Correia, L. Wang, B. Ellerbroek, C. Boyer, and 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); https://doi.org/10.1117/12.2057400

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