Virginie Ollier — accepted AI-conference papers

2018

Robust Calibration of Radio Interferometers in Multi-Frequency Scenario

Virginie Ollier, Mohammed Nabil El Korso, André Ferrari, Rémy Boyer, Pascal Larzabal

ICASSP 2018accepted

This paper investigates calibration of sensor arrays in the radio astronomy context. Current and future radio telescopes require computationally efficient algorithms to overcome the new technical challenges as large collecting area, wide field of view and huge data volume. Specifically, we study the…

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2016

Joint ML calibration and DOA estimation with separated arrays

Virginie Ollier, Mohammed Nabil El Korso, Rémy Boyer, Pascal Larzabal, Marius Pesavento

ICASSP 2016accepted

This paper investigates parametric direction-of-arrival (DOA) estimation in a particular context: i) each sensor is characterized by an unknown complex gain and ii) the array consists of a collection of subarrays which are substantially separated from each other leading ] to a structured noise covar…

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