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- W4289560508 abstract "In this paper, we aim to design robust estimation techniques based on the compound-Gaussian (CG) process and adapted for calibration of radio interferometers. The motivation beyond this is due to the presence of outliers leading to an unrealistic traditional Gaussian noise assumption. Consequently, to achieve robustness, we adopt a maximum a posteriori (MAP) approach which exploits Bayesian statistics and follows a sequential updating procedure here. The proposed algorithm is applied in a multi-frequency scenario in order to enhance the estimation and correction of perturbation effects. Numerical simulations assess the performance of the proposed algorithm for different noise models, Student's t, K, Laplace, Cauchy and inverse-Gaussian compound-Gaussian distributions w.r.t. the classical non-robust Gaussian noise assumption." @default.
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- W4289560508 date "2018-09-03" @default.
- W4289560508 modified "2023-10-16" @default.
- W4289560508 title "Bayesian calibration using different prior distributions: an iterative maximum a posteriori approach for radio interferometers" @default.
- W4289560508 hasPublicationYear "2018" @default.
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