Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Boyer, Remy"'
Intelligent reflecting surface (IRS) is a promising technology for the 6th generation of wireless systems, realizing the smart radio environment concept. In this paper, we present a novel tensor-based receiver for IRS-assisted multiple-input multiple
Externí odkaz:
http://arxiv.org/abs/2205.10290
Intelligent reflecting surface (IRS) is an emerging technology for future wireless communications including 5G and especially 6G. It consists of a large 2D array of (semi-)passive scattering elements that control the electromagnetic properties of rad
Externí odkaz:
http://arxiv.org/abs/2008.04766
In this work, we investigate direction finding in the presence of sensor gain uncertainties and directional perturbations for sensor array processing in a multi-frequency scenario. Specifically, we adopt a distributed optimization scheme in which coh
Externí odkaz:
http://arxiv.org/abs/2002.11498
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
Externí odkaz:
http://arxiv.org/abs/1807.11738
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 tra
Externí odkaz:
http://arxiv.org/abs/1807.11382
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 vie
Externí odkaz:
http://arxiv.org/abs/1807.11314
Publikováno v:
In Signal Processing October 2022 199
Autor:
Bouleux, Guillaume, Boyer, Rémy
We assume the direct sum o for the signal subspace. As a result of post- measurement, a number of operational contexts presuppose the a priori knowledge of the LB -dimensional "interfering" subspace and the goal is to estimate the LA am- plitud
Externí odkaz:
http://arxiv.org/abs/1704.04376
The development of new phased array systems in radio astronomy, as the low frequency array (LOFAR) and the square kilometre array (SKA), formed of a large number of small and flexible elementary antennas, has led to significant challenges. Among them
Externí odkaz:
http://arxiv.org/abs/1612.02023
Autor:
Brossard, Martin, Korso, Mohammed Nabil El, Pesavento, Marius, Boyer, Rémy, Larzabal, Pascal, Wijnholds, Stefan J.
In order to meet the theoretically achievable imaging performance, calibration of modern radio interferometers is a mandatory challenge, especially at low frequencies. In this perspective, we propose a novel parallel iterative multi-wavelength calibr
Externí odkaz:
http://arxiv.org/abs/1609.02448