Empirical Doppler Characterization of Signals Scattered by Wind Turbines in the UHF Band under Near Field Condition

Autor: Itziar Angulo, Jon Montalbán, Josune Cañizo, Yiyan Wu, David de la Vega, David Guerra, Pablo Angueira, Amaia Arrinda
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: International Journal of Antennas and Propagation, Vol 2013 (2013)
Druh dokumentu: article
ISSN: 1687-5869
1687-5877
DOI: 10.1155/2013/804690
Popis: Time variability of the scattering signals from wind turbines may lead to degradation problems on the communication systems provided in the UHF band, especially under near field condition. In order to analyze the variability due to the rotation of the blades, this paper characterizes empirical Doppler spectra obtained from real samples of signals scattered by wind turbines with rotating blades under near field condition. A new Doppler spectrum model is proposed to fit the spectral characteristics of these signals, providing notable goodness of fit. Finally, the effect of this kind of time variability on the degradation of OFDM signals is studied.
Databáze: Directory of Open Access Journals
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