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Proceedings Paper

The ATST visible broadband imager: a case study for real-time image reconstruction and optimal data handling
Author(s): Friedrich Wöger; Han Uitenbroek; Alexandra Tritschler; William McBride; David Elmore; Thomas Rimmele; Bruce Cowan; Steve Wampler; Bret Goodrich
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Paper Abstract

At future telescopes, adaptive optics systems will play a role beyond the correction of Earth's atmosphere. These systems are capable of delivering information that is useful for instrumentation, e.g. if reconstruction algorithms are employed to increase the spatial resolution of the scientific data. For the 4m aperture Advanced Technology Solar Telescope (ATST), a new generation of state-of-the-art instrumentation is developed that will deliver observations of the solar surface at unsurpassed high spatial resolution. The planned Visual Broadband Imager (VBI) is one of those instruments. It will be able to record images at an extremely high rate and compute reconstructed images close to the telescope's theoretical diffraction limit using a speckle interferometry algorithm in near real-time. This algorithm has been refined to take data delivered by the adaptive optics system into account during reconstruction. The acquisition and reconstruction process requires the use of a high-speed data handling infrastructure to retrieve the necessary data from both adaptive optics system and instrument cameras. We present the current design of this infrastructure for the ATST together with a feasibility analysis of the underlying algorithms.

Paper Details

Date Published: 15 July 2010
PDF: 8 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773521 (15 July 2010); doi: 10.1117/12.857321
Show Author Affiliations
Friedrich Wöger, National Solar Observatory (United States)
Han Uitenbroek, National Solar Observatory (United States)
Alexandra Tritschler, National Solar Observatory (United States)
William McBride, National Solar Observatory (United States)
David Elmore, National Solar Observatory (United States)
Thomas Rimmele, National Solar Observatory (United States)
Bruce Cowan, National Solar Observatory (United States)
Steve Wampler, National Solar Observatory (United States)
Bret Goodrich, National Solar Observatory (United States)

Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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