Diffraction limited image restoration by post-compensation from simultaneous speckle and wavefront sensing observations

Richard G. Lane; Michel Tallon; Eric Thiebaut; Richard M. Clare

doi:10.1117/12.462961

7 February 2003 Diffraction-limited image restoration by post-compensation from simultaneous speckle and wavefront sensing observations

Richard G. Lane, Michel Tallon, Eric Thiebaut, Richard M. Clare

Author Affiliations +

Proceedings Volume 4839, Adaptive Optical System Technologies II; (2003) https://doi.org/10.1117/12.462961
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

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.

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Richard G. Lane, Michel Tallon, Eric Thiebaut, and Richard M. Clare "Diffraction-limited image restoration by post-compensation from simultaneous speckle and wavefront sensing observations", Proc. SPIE 4839, Adaptive Optical System Technologies II, (7 February 2003); https://doi.org/10.1117/12.462961

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