Multi-Level Pre-Correlation RFI Flagging for Real-Time Implementation on UniBoard

Autor: Cédric, Dumez-Viou, Rodolphe, Weber, Philippe, Ravier

Because of the denser active use of the spectrum, and because of radio telescopes higher sensitivity, radio frequency interference (RFI) mitigation has become a sensitive topic for current and future radio telescope designs. Even if quite sophisticat

Externí odkaz: http://arxiv.org/abs/1703.00473

Exploration of the Potential of the Radio-Detection Technique for the Detection of High-Energy Gamma Rays

Autor: Julien N. Girard, Jean-Mathias Grießmeier, Stephane Corbel, Alan Loh, Cedric Dumez-Viou, Laurent Denis, Antony Escudie, Richard Dallier, M. Pandey-Pommier, Philippe Zarka, L. Bondonneau, Didier Charrier, Daniel García-Fernández, Lilian Martin, A. Coffre, Leon Koopmans, Benoît Revenu

Publikováno v: PoS
36th International Cosmic Ray Conference
36th International Cosmic Ray Conference, Jul 2019, Madison, United States. pp.655, ⟨10.22323/1.358.0655⟩
Proceedings of Science, ICRC2019
ICRC2019 : 36th International Cosmic Ray Conference
ICRC2019 : 36th International Cosmic Ray Conference, Jul 2019, Madison, Wisconsin, United States. ⟨10.22323/1.358.0655⟩
ICRC2019 : 36th International Cosmic Ray Conference, Jul 2019, Madison, Wisconsin, United States

International audience; The radio detection of atmospheric particle showers initiated by ultra-high energy cosmic rays is today a proven technique that allows to reconstruct their properties (direction of arrival, energy, nature). Among the precursor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::832e346c64810a2a2dcf10af4abd69b8
https://hal.archives-ouvertes.fr/hal-02981221

The Low-Frequency Beamformer and Imager NenuFAR

Autor: A. Coffre, Michel Tagger, A. Loh, Julien N. Girard, Jean-Mathias Griessmeier, Cedric Dumez-Viou, Philippe Zarka, L. Denis

Publikováno v: 2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC).

NenuFAR (New extension in Nancay upgrading LOFAR), is a low-frequency SKA pathfinder presently in construction and commissioning in Nancay (France) [1], [2]. NenuFAR consists of 102 mini-arrays (MA) of 19 dual polarization antennas each. 96 MA cover

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01059d6b84ed5400ed2bc0b2fbd283e6
https://doi.org/10.23919/ursi-at-rasc.2018.8471463

NenuFAR: Instrument description and science case

Autor: Sylvain Azarian, A. Bosma, Chiara Ferrari, A. Petiteau, Loïc Denis, M. Pandey-Pommier, Luitje Koopmans, Remy Boyer, M. Arnaud, C. Taffoureau, Jean-Louis Pinçon, David Mary, Giulia Macario, M. N. El Korso, A. A. Konovalenko, Jean-Jacques Maintoux, W. van Driel, Marcellin Atemkeng, Didier Charrier, Ismaël Cognard, Peter L. Tokarsky, B. Guiderdoni, Benoît Revenu, A. Loh, Annalisa Bonafede, J. Vaubaillon, A. Ferrari, S. Daiboo, S. Masson, M. Serylak, Edith Falgarone, Francoise Combes, F. Levrier, Gilles Theureau, P. Salome, Mykhaylo Panchenko, Arwa Dabbech, M.-A. Miville-Deschenes, B. Semelin, M. Was, Jason W. T. Hessels, J.-M. Griebmeier, Frederic Boone, Carine Briand, Rodolphe Weber, E. Gerard, C. Fevotte, Frederic Rible, S. D. Vergani, V. V. Zakharenko, Cedric Dumez-Viou, V. I. Kondratiev, Julien N. Girard, E. Chassande-Mottin, T. Lanz, L. Lamy, Oleg Smirnov, M. Fullekrug, O. M. Ulyanov, Franco Vazza, Benjamin Stappers, C. Tasse, P. Zarka, M. Tagger, C. Courte, M. Branchesi, Lucas Guillemot, Matt Lehnert, Baptiste Cecconi, Steve Torchinsky, I. Falkovych, D. Oberoi, Richard Dallier, A. Coffre, M. Barsuglia, I. Y. Vasylieva, Stephane Corbel, Katia Ferrière, Helmut O. Rucker, L. Martin, A. Fialkov, S. Celestin, Cédric Richard, Pascal Larzabal

Publikováno v: 2015 International Conference on Antenna Theory and Techniques (ICATT)
2015 International Conference on Antenna Theory and Techniques (ICATT), Apr 2015, Kharkiv, Ukraine. ⟨10.1109/ICATT.2015.7136773⟩
Proceedings of International Conference on Antenna Theory and Techniques; 2015: ICATT’2015-Proc. of X Int. Conf. on Antenna Theory and Techniques; 13-18
Proceedings of International Conference on Antenna Theory and Techniques; 2015: ; 13-18
IEEE International Conference on Antenna Theory and Techniques-ICATT 2015
IEEE International Conference on Antenna Theory and Techniques-ICATT 2015, Apr 2015, Kharkiv, Ukraine. pp.1-6, ⟨10.1109/ICATT.2015.7136773⟩

International audience; NenuFAR is both a giant extension of the LOFAR and a large standalone instrument in the low-frequency range (10-85 MHz). It was designed in Nançay with national and international collaboration. Antenna radiators were modeled

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::219454706ddc602065a112a281676ae2
https://hal.science/hal-01196457/file/zarka2015.pdf

RFI mitigation at Nançay Observatory: Impulsive Signal Processing

Autor: Rodolphe Weber, Dalal Ait-Allal, Cedric Dumez-Viou

Publikováno v: RFI mitigation 2010
RFI mitigation Workshop
RFI mitigation Workshop, Mar 2010, Groningen, Netherlands. pp.PoS(RFI2010)21
Proceedings of Science
RFI Mitigation Workshop
RFI Mitigation Workshop, Mar 2010, Groningen, the Netherlands, Netherlands. pp.21, ⟨10.22323/1.107.0021⟩

Radio astronomy has protected frequency bands for free observations. However, it is often necessary to observe outside of those sanctuaries. For example, it is the case for HI radio-sources with high red-shifts that are observed into radarallocated f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecd64ed0800e0315b330ce627061df20
https://hal.archives-ouvertes.fr/hal-00647455