150 citations · 757 across the 12 of their papers we have counts for
7 papers · 1 filter
Xova: Baseline-Dependent Time and Channel Averaging for Radio Interferometry
Marcellin Atemkeng, Simon Perkins, Jonathan Kenyon +2
Xova is a software package that implements baseline-dependent time and channel averaging on Measurement Set data. The uv-samples along a baseline track are aggregated into a bin un…
A practical preconditioner for wide-field continuum imaging of radio interferometric data
Hertzog L. Bester, Audrey Repetti, Simon Perkins +2
The celebrated CLEAN algorithm has been the cornerstone of deconvolution algorithms in radio interferometry almost since its conception in the 1970s. For all its faults, CLEAN is r…
Radio Interferometric Calibration Using a Complex Student's t-distribution and Wirtinger Derivatives
Ulrich Armel Mbou Sob, Hertzog Landman Bester, Oleg Smirnov +2
Radio interferometric gain calibration can be biased by incomplete sky models and radio frequency interference, resulting in calibration artefacts that can restrict the dynamic ran…
CubiCal - Fast radio interferometric calibration suite exploiting complex optimisation
J. S. Kenyon, O. M. Smirnov, T. L. Grobler +1
It has recently been shown that radio interferometric gain calibration can be expressed succinctly in the language of complex optimisation. In addition to providing an elegant fram…
Redundant interferometric calibration as a complex optimization problem
T. L. Grobler, G. Bernardi, J. S. Kenyon +2
Observations of the redshifted 21-cm line from the epoch of reionization have recently motivated the construction of low frequency radio arrays with highly redundant configurations…
Calibration artefacts in radio interferometry. III. Phase-only calibration and primary beam correction
T. L. Grobler, A. J. Stewart, S. J. Wijnholds +2
This is the third installment in a series of papers in which we investigate calibration artefacts. Calibration artefacts (also known as ghosts or spurious sources) are created when…