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Proceedings Paper

Diffraction limited image restoration by post-compensation from simultaneous speckle and wavefront sensing observations
Author(s): Richard G. Lane; Michel Tallon; Eric Thiebaut; Richard M. Clare
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Paper Abstract

The predominant effect of the atmosphere on the incoming wavefront of an astronomical object is the introduction of a phase distortion, resulting in a speckle image at the ground-based telescope. Deconvolution from wavefront sensing is an imaging technique used to compensate for the degradation due to atmospheric turbulence, where the point spread function is estimated from the wavefront sensing data. An accurate calibration of the wavefront sensor is critical to estimating the point spread function and hence reconstructing the object. This paper investigates the calibration of a Shack-Hartmann wavefront sensor used for deconvolution from wavefront sensing.

Paper Details

Date Published: 7 February 2003
PDF: 12 pages
Proc. SPIE 4839, Adaptive Optical System Technologies II, (7 February 2003); doi: 10.1117/12.462961
Show Author Affiliations
Richard G. Lane, Univ. of Canterbury (New Zealand)
Michel Tallon, Observatoire de Lyon/CRAL (France)
Eric Thiebaut, Observatoire de Lyon/CRAL (France)
Richard M. Clare, Univ. of Canterbury (New Zealand)

Published in SPIE Proceedings Vol. 4839:
Adaptive Optical System Technologies II
Peter L. Wizinowich; Domenico Bonaccini, Editor(s)

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