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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. 29, Iss. 8 — Aug. 1, 2012
  • pp: 1625–1638

Optimal and adaptive control of aero-optical wavefronts for adaptive optics

Jonathan Tesch and Steve Gibson  »View Author Affiliations


JOSA A, Vol. 29, Issue 8, pp. 1625-1638 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001625


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Abstract

This paper compares two control methods to predict and correct aero-optical wavefronts derived from recent flight-test data. The first is an optimal linear time-invariant controller constructed from an identified state-space model of the turbulence flow. The second control method is an adaptive controller based on a recursive least-squares lattice filter. The performance of these control schemes versus classical integrator methods is investigated in an adaptive optics experiment that reproduces the aberrations from in-flight measurements of aero-optical turbulence. Experimental results show the improvement in wavefront correction achieved by both prediction methods. Altering the flow characteristics of the disturbance wavefront during the control process illustrates the ability of the adaptive controller to track changes in the aberration statistics.

© 2012 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.7350) Atmospheric and oceanic optics : Wave-front sensing

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: October 31, 2011
Revised Manuscript: May 15, 2012
Manuscript Accepted: June 1, 2012
Published: July 23, 2012

Citation
Jonathan Tesch and Steve Gibson, "Optimal and adaptive control of aero-optical wavefronts for adaptive optics," J. Opt. Soc. Am. A 29, 1625-1638 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-8-1625


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