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| Paper: |
Accelerating the Search of Optimal Radio Interferometric Gain Solution Intervals using Dask-ms and Dask |
| Volume: |
535, Astronomical Data Analysis Software and Systems XXXI |
| Page: |
331 |
| Authors: |
Sob, U. M. |
| Abstract: |
Solving for gains at longer time and frequency intervals than the data resolution is a well-proven technique for improving signal-to-noise ratio and regularising calibration algorithms. In our previous work, we investigated how different factors, namely, the noise level in the data, the intrinsic variability of the gains, degree of model completeness, and the presence of radio frequency interference impact the selection of optimal solution intervals during calibration. We suggested a brute force algorithm that requires performing the search separately for each chunk of data, antenna and possible direction in the sky. In this work, we present a fast implementation of the algorithm based on Dask-ms and Dask. |
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