The SFXC software correlator for very long baseline interferometry: algorithms and implementation
A Keimpema, MM Kettenis, SV Pogrebenko… - Experimental …, 2015 - Springer
Experimental Astronomy, 2015•Springer
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 …
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 …
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.
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