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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 11 — Nov. 1, 2010
  • pp: A122–A132

Tip–tilt disturbance model identification for Kalman-based control scheme: application to XAO and ELT systems

Serge Meimon, Cyril Petit, Thierry Fusco, and Caroline Kulcsar  »View Author Affiliations


JOSA A, Vol. 27, Issue 11, pp. A122-A132 (2010)
http://dx.doi.org/10.1364/JOSAA.27.00A122


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Abstract

Adaptive optics (AO) systems have to correct tip–tilt (TT) disturbances down to a fraction of the diffraction-limited spot. This becomes a key issue for very or extremely large telescopes affected by mechanical vibration peaks or wind shake effects. Linear quadratic Gaussian (LQG) control achieves optimal TT correction when provided with the temporal model of the disturbance. We propose a nonsupervised identification procedure that does not require any auxiliary system or loop opening and validate it on synthetic profile as well as on experimental data.

© 2010 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(100.3190) Image processing : Inverse problems
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis

History
Original Manuscript: April 6, 2010
Revised Manuscript: August 13, 2010
Manuscript Accepted: August 16, 2010
Published: September 17, 2010

Citation
Serge Meimon, Cyril Petit, Thierry Fusco, and Caroline Kulcsar, "Tip–tilt disturbance model identification for Kalman-based control scheme: application to XAO and ELT systems," J. Opt. Soc. Am. A 27, A122-A132 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-11-A122

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