Relaxed concentrated MLE for robust calibration of radio interferometers - CentraleSupélec Accéder directement au contenu
Communication Dans Un Congrès Année : 2016

Relaxed concentrated MLE for robust calibration of radio interferometers

Résumé

In this paper, we investigate the calibration of radio interfer-ometers in which Jones matrices are considered to model the interaction between the incident electromagnetic field and the antennas of each station. Specifically, perturbation effects are introduced along the signal path, leading to the conversion of the plane wave into an electric voltage by the receptor. In order to design a robust estimator, the noise is assumed to follow a spherically invariant random process (SIRP). The derived algorithm is based on an iterative relaxed concentrated maximum likelihood estimator (MLE), for which closed-form expressions are obtained for most of the unknown parameters.
Fichier principal
Vignette du fichier
EUSIPCO.pdf (125.35 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01335481 , version 1 (21-06-2016)

Identifiants

Citer

Virginie Ollier, Mohammed Nabil El Korso, Remy Boyer, Pascal Larzabal, Marius Pesavento. Relaxed concentrated MLE for robust calibration of radio interferometers . 24th European Signal Processing Conference (EUSIPCO), Aug 2016, Budapest, Hungary. ⟨10.1109/eusipco.2016.7760254⟩. ⟨hal-01335481⟩
229 Consultations
338 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More