Výsledky vyhledávání - "Laurent Castanet"

Akademický článek

Preliminary Investigation of the Potentialities of a Mesoscale Meteorological Model to Reproduce Experimental Statistics of Rain Attenuation on Earth-Space Links

Autor: Laurent Castanet, Valentin Le Mire, Julien Queyrel, Xavier Boulanger, Laurent Féral

Publikováno v: International Journal of Antennas and Propagation, Vol 2022 (2022)

Current spatial resolutions achieved by mesoscale weather forecast models allow them to be used to generate the state of the lowest layers of the atmosphere over areas as small as a few square kilometers which corresponds to the typical size of the t

Externí odkaz: https://doaj.org/article/3fdab6690d86430b9325ff6350b52755

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Akademický článek

A Large-Scale Space-Time Stochastic Simulation Tool of Rain Attenuation for the Design and Optimization of Adaptive Satellite Communication Systems Operating between 10 and 50 GHz

Autor: Nicolas Jeannin, Laurent Féral, Henri Sauvageot, Laurent Castanet, Frédéric Lacoste

Publikováno v: International Journal of Antennas and Propagation, Vol 2012 (2012)

The design and optimization of propagation impairment techniques for space telecommunication systems operating at frequencies above 20 GHz require a precise knowledge of the propagation channel both in space and time. For that purpose, space-time cha

Externí odkaz: https://doaj.org/article/fba17982a1944164b55e8609a06f8cfb

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Ka-Band Satellite Propagation Experiment at the Guiana Space Centre

Autor: Charles-Antoine L'Hour, Jean-Pascal Monvoisin, Xavier Boulanger, Laurent Castanet

Publikováno v: IEEE Transactions on Antennas and Propagation. 70:10811-10819

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::002428cccce363c9325a003e8f62ba3b
https://doi.org/10.1109/tap.2022.3209267

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Prediction of three years of annual rain attenuation statistics at Ka‐band in French Guiana using the Numerical Weather Prediction model WRF

Autor: Valentin Le Mire, Xavier Boulanger, Laurent Castanet, Laurent Féral

Publikováno v: Radio Science.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fa6ea87fb347495d14c1058ee53009b5
https://doi.org/10.1029/2022rs007617

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Estimation des statistiques annuelles d'atténuation due à la pluie en climat tempéré à 20/40 GHz avec un modèle de prévision météorologique à haute résolution

Autor: Laurent Quibus, Valentin Le Mire, Julien Queyrel, Xavier Boulanger, Laurent Castanet, Laurent Féral

Publikováno v: IEEE Antennas and Wireless Propagation Letters
IEEE Antennas and Wireless Propagation Letters, 2022, 22 (3), pp.601-605. ⟨10.1109/LAWP.2022.3219776⟩

International audience; Earth-space communications are to make use of higher frequencies, at and above 20 GHz, to offer new services and increased data rates. A consequence is a strong attenuation of the carrier waves by the troposphere, particularly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eba0d397014de71d5d6e239525d29c73
https://hal.science/hal-04051903/file/demr22066.pdf

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Small and large scale site diversity experiment at Ka-band in the south of France

Autor: Frederic Lacoste, Laurent Castanet, Xavier Boulanger

Publikováno v: International Journal of Satellite Communications and Networking. 36:14-28

Summary Since April 2011, ONERA has been operating in Toulouse, France, a beacon receiver able to receive the 20.199 GHz beacon signal of ASTRA 3B. From June 2013 to December 2013, ONERA and CNES successively deployed in the South of France four more

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1cce80a37e68e1897addb7e1f8e533fb
https://doi.org/10.1002/sat.1190

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Four Years of Total Attenuation Statistics of Earth-Space Propagation Experiments at Ka-Band in Toulouse

Autor: Benjamin Gabard, Xavier Boulanger, L. Casadebaig, Laurent Castanet

Publikováno v: IEEE Transactions on Antennas and Propagation. 63:2203-2214

The Ka-band propagation experiments conducted by ONERA in Toulouse (43.57°E, 1.47°N) in the southwest of France started in 2009 and is still on-going. The equipment comprises a beacon Earth station, a profiling radiometer, and a rain gauge. The gro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5e21d83435d0dd75db72fbd41720e4af
https://doi.org/10.1109/tap.2015.2407376

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Smart gateways switching control algorithms based on tropospheric propagation forecasts

Autor: Béatrice Pouponneau, Laurent Castanet, Nicolas Jeannin, Isabelle Dahman, Vivien Pourret

Publikováno v: International Journal of Satellite Communications and Networking
International Journal of Satellite Communications and Networking, Wiley, 2017, page 1-13. 〈10.1002/sat.1233〉
International Journal of Satellite Communications and Networking, Wiley, 2017, page 1-13. ⟨10.1002/sat.1233⟩
International Journal of Satellite Communications and Networking, 2017, page 1-13. ⟨10.1002/sat.1233⟩

International audience; The use Q/V band spectrum for the feeder links of high throughput satellites and the need to cope with the significant propagation impairments at those frequencies motivate the development of smart diversity techniques. Those

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::535fdc9e9a50db612a602e1b217b8a00
https://hal.archives-ouvertes.fr/hal-01735636

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Radar Propagation Experiment in the North Sea: The Sylt Campaign

Autor: Vincent Fabbro, Laurent Castanet, Gregor Biegel, Paul Colditz, Yvonick Hurtaud, Jorg Forster, Andreas Danklmayer, Thorsten Brehm

Publikováno v: IEEE Transactions on Geoscience and Remote Sensing
IEEE Transactions on Geoscience and Remote Sensing, Institute of Electrical and Electronics Engineers, 2017, 56 (2), pp.835-846. ⟨10.1109/TGRS.2017.2755506⟩

International audience; This paper describes an experiment that was carried out in the North Sea off the Sylt island in May 2012 with the aim to study the influence of the maritime boundary layer conditions on the propagation of radar signals under l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e6d9e89b41bb4ca3ec3adb3e18e8dfe
https://hal.archives-ouvertes.fr/hal-01710856/document

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Measurements of sea clutter at low grazing angle in mediterranean coastal environment

Autor: Andreas Danklmayer, Laurent Castanet, Vincent Fabbro, Gregor Biegel, Jean-Baptiste Poisson, C. Bohler, J.-P. Marcellin, Thorsten Brehm, A. Ulland, M. Gallus, Yvonick Hurtaud, Jorg Forster

International audience; Results of a coastal measurement campaign called MediterraneAn Rfc and cLutter ENvironmental Experiment (MARLENE) are presented and studied. The campaign was held in spring 2014, on a DGA site in the Mediterranean Sea region o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84f8b6bf25dd50d23ae978b2c97b6e86
https://publica.fraunhofer.de/handle/publica/250344

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