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The Murchison Widefield Array Correlator

Ord, S M; Crosse, B; Emrich, David; Pallot, D; Wayth, Randall; Clark , M. A; Tremblay, S.E.; Arcus, W; Barnes, David G; Bell, M; Bernardi, G; Bhat, N.D.R.; Briggs, Franklin; McKinley, Benjamin; Offringa, Andre; Bowman, J D; Bowman, Judd D; Deshpande, Avinash; Feng, Lu; Greenhill, Lincoln; Hazelton, B; Johnston-Hollitt, M; Kaplan, D L; Kincaid, Barton B; Oberoi, D; Prabu, T; Rogers, Alan; Srivani, K. S.; Webster, Rachel L; Whitney, Alan; Hindson, L; Jacobs, Daniel C.; Kasper, J.C.; Kasper, Justin; Procopio, P.; Udaya Shankar, N.; Williams, Christopher L; Waterson, Mark

Description

The Murchison Widefield Array is a Square Kilometre Array Precursor. The telescope is located at the Murchison Radio-astronomy Observatory in Western Australia. The MWA consists of 4 096 dipoles arranged into 128 dual polarisation aperture arrays forming a connected element interferometer that cross-correlates signals from all 256 inputs. A hybrid approach to the correlation task is employed, with some processing stages being performed by bespoke hardware, based on Field Programmable Gate...[Show more]

dc.contributor.authorOrd, S M
dc.contributor.authorCrosse, B
dc.contributor.authorEmrich, David
dc.contributor.authorPallot, D
dc.contributor.authorWayth, Randall
dc.contributor.authorClark , M. A
dc.contributor.authorTremblay, S.E.
dc.contributor.authorArcus, W
dc.contributor.authorBarnes, David G
dc.contributor.authorBell, M
dc.contributor.authorBernardi, G
dc.contributor.authorBhat, N.D.R.
dc.contributor.authorBriggs, Franklin
dc.contributor.authorMcKinley, Benjamin
dc.contributor.authorOffringa, Andre
dc.contributor.authorBowman, J D
dc.contributor.authorBowman, Judd D
dc.contributor.authorDeshpande, Avinash
dc.contributor.authorFeng, Lu
dc.contributor.authorGreenhill, Lincoln
dc.contributor.authorHazelton, B
dc.contributor.authorJohnston-Hollitt, M
dc.contributor.authorKaplan, D L
dc.contributor.authorKincaid, Barton B
dc.contributor.authorOberoi, D
dc.contributor.authorPrabu, T
dc.contributor.authorRogers, Alan
dc.contributor.authorSrivani, K. S.
dc.contributor.authorWebster, Rachel L
dc.contributor.authorWhitney, Alan
dc.contributor.authorHindson, L
dc.contributor.authorJacobs, Daniel C.
dc.contributor.authorKasper, J.C.
dc.contributor.authorKasper, Justin
dc.contributor.authorProcopio, P.
dc.contributor.authorUdaya Shankar, N.
dc.contributor.authorWilliams, Christopher L
dc.contributor.authorWaterson, Mark
dc.date.accessioned2016-06-14T23:20:24Z
dc.identifier.issn1323-3580
dc.identifier.urihttp://hdl.handle.net/1885/103365
dc.description.abstractThe Murchison Widefield Array is a Square Kilometre Array Precursor. The telescope is located at the Murchison Radio-astronomy Observatory in Western Australia. The MWA consists of 4 096 dipoles arranged into 128 dual polarisation aperture arrays forming a connected element interferometer that cross-correlates signals from all 256 inputs. A hybrid approach to the correlation task is employed, with some processing stages being performed by bespoke hardware, based on Field Programmable Gate Arrays, and others by Graphics Processing Units housed in general purpose rack mounted servers. The correlation capability required is approximately 8 tera floating point operations per second. The MWA has commenced operations and the correlator is generating 8.3 TB day-1 of correlation products, that are subsequently transferred 700 km from the MRO to Perth (WA) in real-time for storage and offline processing. In this paper, we outline the correlator design, signal path, and processing elements and present the data format for the internal and external interfaces.
dc.publisherCSLI Publications
dc.sourcePublications of the Astronomical Society of Australia
dc.titleThe Murchison Widefield Array Correlator
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume32
dc.date.issued2015
local.identifier.absfor020100 - ASTRONOMICAL AND SPACE SCIENCES
local.identifier.absfor020199 - Astronomical and Space Sciences not elsewhere classified
local.identifier.ariespublicationU3488905xPUB6652
local.type.statusPublished Version
local.contributor.affiliationOrd, S M, Curtin University
local.contributor.affiliationCrosse, B, Curtin University
local.contributor.affiliationEmrich, David, Curtin University
local.contributor.affiliationPallot, D, Curtin University
local.contributor.affiliationWayth, Randall, Curtin University
local.contributor.affiliationClark , M. A, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationTremblay, S.E., Curtin University
local.contributor.affiliationArcus, W, Curtin University
local.contributor.affiliationBarnes, David G, Swinburne University of Technology
local.contributor.affiliationBell, M, University of Southampton
local.contributor.affiliationBernardi, G, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationBhat, N.D.R., Curtin University
local.contributor.affiliationBriggs, Franklin, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMcKinley, Benjamin, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationOffringa, Andre, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBowman, J D, Arizona State University
local.contributor.affiliationBowman, Judd D, Arizona State University
local.contributor.affiliationDeshpande, Avinash, Raman Research Institute
local.contributor.affiliationFeng, Lu, MIT, Kavli Institute for Astrophysics and Space Research
local.contributor.affiliationGreenhill, Lincoln, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationHazelton, B, University of Washington
local.contributor.affiliationJohnston-Hollitt, M, University of Wellington
local.contributor.affiliationKaplan, D L, University of Wisconsin-Milwaukee
local.contributor.affiliationKincaid, Barton B, Haystack Observatory
local.contributor.affiliationOberoi, D, National Centre for Radio Astrophysics
local.contributor.affiliationPrabu, T, Raman Research Institute
local.contributor.affiliationRogers, Alan, Haystack Observatory
local.contributor.affiliationSrivani, K. S., Raman Research Institute
local.contributor.affiliationWebster, Rachel L, University of Melbourne
local.contributor.affiliationWhitney, Alan, Haystack Observatory
local.contributor.affiliationHindson, L, Victoria University of Wellington
local.contributor.affiliationJacobs, Daniel C., Arizona State University
local.contributor.affiliationKasper, J.C., University of Michigan
local.contributor.affiliationKasper, Justin, Harvard–Smithsonian Center for Astrophysics
local.contributor.affiliationProcopio, P., University of Melbourne
local.contributor.affiliationUdaya Shankar, N., Raman Research Institute
local.contributor.affiliationWilliams, Christopher L, MIT Kavli Institute for Astrophysics and Space Research
local.contributor.affiliationWaterson, Mark, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.identifier.doi10.1017/pasa.2015.5
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2016-06-14T08:48:49Z
local.identifier.scopusID2-s2.0-84945200367
CollectionsANU Research Publications

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