The Murchison Widefield Array Correlator

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...

Full description

Bibliographic Details
Main Authors:	Ord, Stephen, Crosse, B., Emrich, D., Pallot, D., Wayth, Randall, Clark, M., Tremblay, S., Arcus, W., Barnes, D., Bell, M., Bernardi, G., Bhat, N., Bowman, J., Briggs, F., Bunton, J., Cappallo, R., Corey, B., Deshpande, A., deSouza, L., Ewell-Wice, A., Feng, L., Goeke, R., Greenhill, L., Hazelton, B., Herne, D., Hewitt, J., Hindson, L., Hurley-Walker, N., Jacobs, D., Johnston-Hollitt, M., Kaplan, D., Kasper, J., Kincaid, B., Koenig, R., Kratzenberg, E., Kudryavtseva, N., Lenc, E., Lonsdale, C., Lynch, Mervyn, McKinley, B., McWhirter, S., Mitchell, D., Morales, M., Morgan, E., Oberoi, D., Offringa, A., Pathikulangara, J., Pindor, B., Prabu, T., Procopio, P., Remillard, R., Riding, J., Rogers, A., Roshi, A., Salah, J., Sault, R., Shankar, N., Srivani, K., Stevens, J., Subrahmanyan, R., Tingay, Steven, Waterson, M., Webster, R., Whitney, A., Williams, A., Williams, C., Wyithe, J.
Format:	Journal Article
Published:	CAMBRIDGE UNIV PRESS 2015
Online Access:	http://hdl.handle.net/20.500.11937/42327

_version_	1848756389324783616
author	Ord, Stephen Crosse, B. Emrich, D. Pallot, D. Wayth, Randall Clark, M. Tremblay, S. Arcus, W. Barnes, D. Bell, M. Bernardi, G. Bhat, N. Bowman, J. Briggs, F. Bunton, J. Cappallo, R. Corey, B. Deshpande, A. deSouza, L. Ewell-Wice, A. Feng, L. Goeke, R. Greenhill, L. Hazelton, B. Herne, D. Hewitt, J. Hindson, L. Hurley-Walker, N. Jacobs, D. Johnston-Hollitt, M. Kaplan, D. Kasper, J. Kincaid, B. Koenig, R. Kratzenberg, E. Kudryavtseva, N. Lenc, E. Lonsdale, C. Lynch, Mervyn McKinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Pathikulangara, J. Pindor, B. Prabu, T. Procopio, P. Remillard, R. Riding, J. Rogers, A. Roshi, A. Salah, J. Sault, R. Shankar, N. Srivani, K. Stevens, J. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C. Wyithe, J.
author_facet	Ord, Stephen Crosse, B. Emrich, D. Pallot, D. Wayth, Randall Clark, M. Tremblay, S. Arcus, W. Barnes, D. Bell, M. Bernardi, G. Bhat, N. Bowman, J. Briggs, F. Bunton, J. Cappallo, R. Corey, B. Deshpande, A. deSouza, L. Ewell-Wice, A. Feng, L. Goeke, R. Greenhill, L. Hazelton, B. Herne, D. Hewitt, J. Hindson, L. Hurley-Walker, N. Jacobs, D. Johnston-Hollitt, M. Kaplan, D. Kasper, J. Kincaid, B. Koenig, R. Kratzenberg, E. Kudryavtseva, N. Lenc, E. Lonsdale, C. Lynch, Mervyn McKinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Pathikulangara, J. Pindor, B. Prabu, T. Procopio, P. Remillard, R. Riding, J. Rogers, A. Roshi, A. Salah, J. Sault, R. Shankar, N. Srivani, K. Stevens, J. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C. Wyithe, J.
author_sort	Ord, Stephen
building	Curtin Institutional Repository
collection	Online Access
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 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.
first_indexed	2025-11-14T09:11:25Z
format	Journal Article
id	curtin-20.500.11937-42327
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T09:11:25Z
publishDate	2015
publisher	CAMBRIDGE UNIV PRESS
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-423272017-09-13T14:20:14Z The Murchison Widefield Array Correlator Ord, Stephen Crosse, B. Emrich, D. Pallot, D. Wayth, Randall Clark, M. Tremblay, S. Arcus, W. Barnes, D. Bell, M. Bernardi, G. Bhat, N. Bowman, J. Briggs, F. Bunton, J. Cappallo, R. Corey, B. Deshpande, A. deSouza, L. Ewell-Wice, A. Feng, L. Goeke, R. Greenhill, L. Hazelton, B. Herne, D. Hewitt, J. Hindson, L. Hurley-Walker, N. Jacobs, D. Johnston-Hollitt, M. Kaplan, D. Kasper, J. Kincaid, B. Koenig, R. Kratzenberg, E. Kudryavtseva, N. Lenc, E. Lonsdale, C. Lynch, Mervyn McKinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Pathikulangara, J. Pindor, B. Prabu, T. Procopio, P. Remillard, R. Riding, J. Rogers, A. Roshi, A. Salah, J. Sault, R. Shankar, N. Srivani, K. Stevens, J. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C. Wyithe, J. 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 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. 2015 Journal Article http://hdl.handle.net/20.500.11937/42327 10.1017/pasa.2015.5 CAMBRIDGE UNIV PRESS unknown
spellingShingle	Ord, Stephen Crosse, B. Emrich, D. Pallot, D. Wayth, Randall Clark, M. Tremblay, S. Arcus, W. Barnes, D. Bell, M. Bernardi, G. Bhat, N. Bowman, J. Briggs, F. Bunton, J. Cappallo, R. Corey, B. Deshpande, A. deSouza, L. Ewell-Wice, A. Feng, L. Goeke, R. Greenhill, L. Hazelton, B. Herne, D. Hewitt, J. Hindson, L. Hurley-Walker, N. Jacobs, D. Johnston-Hollitt, M. Kaplan, D. Kasper, J. Kincaid, B. Koenig, R. Kratzenberg, E. Kudryavtseva, N. Lenc, E. Lonsdale, C. Lynch, Mervyn McKinley, B. McWhirter, S. Mitchell, D. Morales, M. Morgan, E. Oberoi, D. Offringa, A. Pathikulangara, J. Pindor, B. Prabu, T. Procopio, P. Remillard, R. Riding, J. Rogers, A. Roshi, A. Salah, J. Sault, R. Shankar, N. Srivani, K. Stevens, J. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C. Wyithe, J. The Murchison Widefield Array Correlator
title	The Murchison Widefield Array Correlator
title_full	The Murchison Widefield Array Correlator
title_fullStr	The Murchison Widefield Array Correlator
title_full_unstemmed	The Murchison Widefield Array Correlator
title_short	The Murchison Widefield Array Correlator
title_sort	murchison widefield array correlator
url	http://hdl.handle.net/20.500.11937/42327

The Murchison Widefield Array Correlator

Similar Items