Large-scale wave-front reconstruction for adaptive optics systems by use of a recursive filtering algorithm
Applied Optics, Vol. 44, Issue 13, pp. 2626-2637 (2005)
http://dx.doi.org/10.1364/AO.44.002626
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Abstract
We propose a new recursive filtering algorithm for wave-front reconstruction in a large-scale adaptive optics system. An embedding step is used in this recursive filtering algorithm to permit fast methods to be used for wave-front reconstruction on an annular aperture. This embedding step can be used alone with a direct residual error updating procedure or used with the preconditioned conjugate-gradient method as a preconditioning step. We derive the Hudgin and Fried filters for spectral-domain filtering, using the eigenvalue decomposition method. Using Monte Carlo simulations, we compare the performance of discrete Fourier transform domain filtering, discrete cosine transform domain filtering, multigrid, and alternative-direction-implicit methods in the embedding step of the recursive filtering algorithm. We also simulate the performance of this recursive filtering in a closed-loop adaptive optics system.
© 2005 Optical Society of America
OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
Citation
Hongwu Ren, Richard Dekany, and Matthew Britton, "Large-scale wave-front reconstruction for adaptive optics systems by use of a recursive filtering algorithm," Appl. Opt. 44, 2626-2637 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-13-2626
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