Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Tropospheric Scintillation with Concurrent Rain Attenuation at 50 GHz in Madrid
Year:2012
Research Areas
  • Telecommunications
Information
Abstract
Tropospheric scintillation can become a significant impairment in satellite communication systems, especially in those with low fade-margin. Moreover, fast amplitude fluctuations due to scintillation are even larger when rain is present on the propagation path. Few studies of scintillation during rain have been reported and the statistical characterization is still not totally clear. This paper presents experimental results on the relationship between scintillation and rain attenuation obtained from slant-path attenuation measurements at 50 GHz. The study is focused on the probability density function (PDF) of various scintillation parameters. It is shown that scintillation intensity, measured as the standard deviation of the amplitude fluctuations, increases with rain attenuation; in the range 1-10 dB this relationship can be expressed by power-law or linear equations. The PDFs of scintillation intensity conditioned to a given rain attenuation level are lognormal, while the overall long-term PDF is well fitted by a generalized extreme value (GEV) distribution. The short-term PDFs of amplitude conditioned to a given intensity are normal, although skewness effects are observed for the strongest intensities. A procedure is given to derive numerically the overall PDF of scintillation amplitude using a combination of conditional PDFs and local statistics of rain attenuation.
International
Si
JCR
Si
Title
IEEE Transactions on Antennas and Propagation
ISBN
0018-926X
Impact factor JCR
2,332
Impact info
Volume
60
10.1109/TAP.2011.2180326
Journal number
3
From page
1578
To page
1583
Month
MARZO
Ranking
Participants
  • Autor: Pedro Garcia Del Pino (UPM)
  • Autor: Jose Manuel Riera Salis (UPM)
  • Autor: Ana Benarroch Vila
Research Group, Departaments and Institutes related
  • Creador: Departamento: Señales, Sistemas y Radiocomunicaciones
  • Departamento: Ingeniería Audiovisual y Comunicaciones
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)