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Offline and online reconstruction for radio interferometric imaging

Cai, X; Pratley, L; McEwen, JD; (2020) Offline and online reconstruction for radio interferometric imaging. In: 2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science. IEEE: Rome, Italy. Green open access

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Abstract

Radio astronomy is transitioning to a big-data era due to the emerging generation of radio interferometric (RI) telescopes, such as the Square Kilometre Array (SKA), which will acquire massive volumes of data. In this article we review methods proposed recently to resolve the ill-posed inverse problem of imaging the raw visibilities acquired by RI telescopes in the big-data scenario. We focus on the recently proposed online reconstruction method [4] and the considerable savings in data storage requirements and computational cost that it yields.

Type: Proceedings paper
Title: Offline and online reconstruction for radio interferometric imaging
Event: 2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science
Dates: 29 Aug 2020 - 5 Sep 2020
ISBN-13: 9789463968003
Open access status: An open access version is available from UCL Discovery
DOI: 10.23919/URSIGASS49373.2020.9232233
Publisher version: https://doi.org/10.23919/URSIGASS49373.2020.923223...
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Image resolution, Radio astronomy, Inverse problems, Imaging, Memory, Radio interferometry, Telescopes
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10164544
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