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- Title
The SFXC software correlator for very long baseline interferometry: algorithms and implementation.
- Authors
Keimpema, A.; Kettenis, M.; Pogrebenko, S.; Campbell, R.; Cimó, G.; Duev, D.; Eldering, B.; Kruithof, N.; Langevelde, H.; Marchal, D.; Molera Calvés, G.; Ozdemir, H.; Paragi, Z.; Pidopryhora, Y.; Szomoru, A.; Yang, J.
- Abstract
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.
- Subjects
VERY long baseline interferometers; COMPUTER algorithms; COMPUTER software; STATISTICAL correlation; IMAGE processing
- Publication
Experimental Astronomy, 2015, Vol 39, Issue 2, p259
- ISSN
0922-6435
- Publication type
Article
- DOI
10.1007/s10686-015-9446-1