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The SFXC software correlator for very long baseline interferometry: algorithms and implementation


Keimpema, A and Kettenis, MM and Pogrebenko, SV and Campbell, RM and Cimo, G and Duev, DA and Eldering, B and Kruithof, N and van Langevelde, HJ and Marchal, D and Molera Calves, G and Ozdemir, H and Paragi, Z and Pidopryhora, Y and Szomoru, A and Yang, J, The SFXC software correlator for very long baseline interferometry: algorithms and implementation, Experimental Astronomy, 39, (2) pp. 259-279. ISSN 0922-6435 (2015) [Refereed Article]

Copyright Statement

2015 Springer Science+Business Media

DOI: doi:10.1007/s10686-015-9446-1


In this paper a description is given of the SFXC software correlator, developed and maintained at the Joint Institute for VLBI in Europe (JIVE). The software is designed to run on generic Linux-based computing clusters. The correlation algorithm is explained in detail, as are some of the novel modes that software correlation has enabled, such as wide-field VLBI imaging through the use of multiple phase centres and pulsar gating and binning. This is followed by an overview of the software architecture. Finally, the performance of the correlator as a function of number of CPU cores, telescopes and spectral channels is shown.

Item Details

Item Type:Refereed Article
Keywords:astronomical computing, software correlation, VLBI, e-VLBI
Research Division:Information and Computing Sciences
Research Group:Software engineering
Research Field:Software testing, verification and validation
Objective Division:Information and Communication Services
Objective Group:Information systems, technologies and services
Objective Field:Information systems, technologies and services not elsewhere classified
UTAS Author:Pidopryhora, Y (Dr Yurii Pidopryhora)
ID Code:99223
Year Published:2015
Web of Science® Times Cited:71
Deposited By:Mathematics and Physics
Deposited On:2015-03-17
Last Modified:2017-11-01

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