K

M

KORSO , M

Last name: KORSO

First name: M

September 3, 2018 (v1)

Conference paper

Metadata-only

Bayesian calibration using different prior distributions: an iterative maximum a posteriori approach for radio interferometers

Ollier, V Korso, M Ferrari, A

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...

Uploaded on: December 4, 2022
August 26, 2019 (v1)

Conference paper

Metadata-only

Performance bound for robust array calibration in radio interferometry

Boudehane, A Boyer, Remy Ollier, V.

Robust calibration of next-generation radio-interferometers, as the square kilometer array (SKA) for instance, is a crucial prepro-cessing step for sky imaging. Recently, several robust calibration es-timators based on the use of well known strong sources in the field of view (FOV) have been proposed in the literature. For that, usually a...

Uploaded on: December 4, 2022