Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Laurent Feral"'
Publikováno v:
EUCAP 2021
EUCAP 2021, Sep 2021, Dusseldorf, Germany
EUCAP 2021, Sep 2021, Dusseldorf, Germany
International audience; Frequencies at and above K/Ka band are required for the deployment of (very) high throughput satellites. Yet, radio-links at those frequencies are strongly affected by tropospheric constituents, especially rain. The knowledge
Publikováno v:
2020 14th European Conference on Antennas and Propagation (EuCAP)
EUCAP 2020
EUCAP 2020, Mar 2020, COPENHAGUE, Denmark. ⟨10.23919/EuCAP48036.2020.9135414⟩
EUCAP 2020
EUCAP 2020, Mar 2020, COPENHAGUE, Denmark. ⟨10.23919/EuCAP48036.2020.9135414⟩
International audience; This paper presents the use of a Numerical Weather Prediction model (the WRF US model from NCAR/NCEP) coupled with an electromagnetic module to create rain attenuation time series and statistical results in a tropical region.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99586593391a5e6af1f5784296eb1d87
https://hal.archives-ouvertes.fr/hal-02907072/document
https://hal.archives-ouvertes.fr/hal-02907072/document
Publikováno v:
2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
This paper proposes the use of a Numerical Weather Prediction (NWP) model to emulate site diversity statistics. Particularly, the Weather Research and Forecasting (WRF) model coupled with an Electromagnetic Module (EMM) is used here to generate rain
Publikováno v:
Journal of Geophysical Research Space Physics
Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2016, ⟨10.1002/2016JA023233⟩
Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2016, ⟨10.1002/2016JA023233⟩
International audience; To limit the computation time and the computer resource, 2D numerical approaches such as 2D Parabolic Wave Equation (2D-PWE) associated with 1D Multiple Phase Screens (1D-MPS) are classically used to estimate ionospheric scint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e56698609c571f22156dd7fddb2c83a4
https://hal-enac.archives-ouvertes.fr/hal-01417193
https://hal-enac.archives-ouvertes.fr/hal-01417193
Publikováno v:
IEEE Transactions on Antennas and Propagation. 61:1396-1406
In Recommendation ITU-R P.1853-1, a stochastic approach is proposed to generate long-term rain attenuation time series , including rain and no rain periods anywhere in the world. Nevertheless, its dynamic properties have been validated so far from ex
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
Publikováno v:
2010 Proceedings of the Fourth European Conference on Antennas & Propagation (EuCAP); 2010, p1-5, 5p
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
Autor:
Fayon, Gaëtan
Publikováno v:
Electromagnétisme. UNIVERSITE TOULOUSE 3 PAUL SABATIER (UT3 PAUL SABATIER), 2017. Français
Due to the congestion of standard frequency bands (S, C, Ku bands) and the need to offer higher data rates for multimedia services, space communication systems require to be operated at carrier frequencies higher than 20 GHz: Ka-band (20-30 GHz) for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1a1f1429212fb9a408e795489a3bd428
https://hal.archives-ouvertes.fr/tel-01702803/file/DEMR17096.1512052043.pdf
https://hal.archives-ouvertes.fr/tel-01702803/file/DEMR17096.1512052043.pdf
Autor:
Galiègue, Hélène
Publikováno v:
Electromagnétisme. UNIVERSITE TOULOUSE 3 PAUL SABATIER, 2015. Français
The ionospheric plasma is located at the border between neutral atmosphere and outer space and many complex ionization reactions occur inside this turbulent medium. The Earth magnetic field and induced electric fields cause rapid fluctuations of elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2592::affc28c9e20202997c606a39bc80fb0b
https://hal.archives-ouvertes.fr/tel-01203660/file/DEMR15068.1442386869.pdf
https://hal.archives-ouvertes.fr/tel-01203660/file/DEMR15068.1442386869.pdf