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• W2949249926 abstract "In radio astronomy, accurate calibration is of crucial importance for the new generation of radio interferometers. More specifically, because of the potential presence of outliers which affect the measured data, robustness needs to be ensured. On the other hand, calibration is improved by taking advantage of these new instruments and exploiting the known structure of parameters of interest across frequency. Therefore, we propose in this paper an iterative robust multi-frequency calibration algorithm based on a distributed and consensus optimization scheme which aims to estimate the complex gains of the receivers and the directional perturbations caused by the ionosphere. Numerical simulations reveal that the proposed distributed calibration technique outperforms the conventional non-robust algorithm and per-channel calibration." @default.
• W2949249926 created "2019-06-27" @default.
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• W2949249926 date "2018-07-31" @default.
• W2949249926 modified "2023-09-27" @default.
• W2949249926 title "Robust distributed calibration of radio interferometers with direction dependent distortions" @default.
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• W2949249926 hasPublicationYear "2018" @default.
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