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Innovative pupil topographies for sparse aperture telescopes and SNR

Breckinridge, James and Bryant, Nevin and Lorre, John (2008) Innovative pupil topographies for sparse aperture telescopes and SNR. In: Optical and Infrared Interferometry. Proceedings of SPIE. No.7013. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 70133E. ISBN 9780819472236. http://resolver.caltech.edu/CaltechAUTHORS:20180718-162952782

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Abstract

Since the first application of the telescope to astronomy in 1610, most new astronomical discoveries require larger and larger radiation collecting areas. Today, the twin 10-meter Keck telescopes are operational and several 30-meter-aperture class telescopes are being planned. Optical interferometers and sparse aperture ground telescopes for astronomy have been proposed and built. Fienup showed the dependence between exposure time and the dilution factor of the aperture needed to maintain image quality.1 Carpenter suggests a sparse aperture telescope system for the purpose of imaging across the surfaces of stars.2 This paper demonstrates that the ability to reconstruct images from white-light extended sources with different contrast levels also depends on the specific pupil topography that is applied to the telescope system. Signal-to-noise ratios for recorded images are calculated for scene contrast, pupil shape, detector full-well, detected photons, and exposure times.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.787011DOIArticle
ORCID:
AuthorORCID
Breckinridge, James0000-0002-9488-098X
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers (SPIE). This research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, and was sponsored by the National Aeronautics and Space Administration (NASA).
Group:GALCIT
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Subject Keywords:telescopes, sparse apertures, image quality, signal-to-noise ratio, image processing
Record Number:CaltechAUTHORS:20180718-162952782
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180718-162952782
Official Citation:James Breckinridge, Nevin Bryant, John Lorre, "Innovative pupil topographies for sparse aperture telescopes and SNR", Proc. SPIE 7013, Optical and Infrared Interferometry, 70133E (28 July 2008); doi: 10.1117/12.787011; https://doi.org/10.1117/12.787011
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87984
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:19 Jul 2018 15:29
Last Modified:19 Jul 2018 15:29

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