DocumentCode :
1303616
Title :
Seasonal Additional Attenuation in Woodlands for Satellite Services at L-, S- and C-Bands 
Author :
Horak, Petr ; Pechac, Pavel
Author_Institution :
Dept. of Electromagn. Field, Czech Tech. Univ. in Prague, Prague, Czech Republic
Volume :
59
Issue :
12
fYear :
2011
Firstpage :
4865
Lastpage :
4867
Abstract :
Results of measurement trials at 2.0, 3.5, 5.0 and 6.5 GHz focused on high elevation links with a ground terminal inside a forested area are presented. Previous measurements during summer vegetation shadowing in full leaf were significantly expanded upon in new locations and, in addition, by conducting trials during winter. New empirical linear models were derived for both summer and winter at a broad frequency range taking into consideration elevation angles between 25 to 90 degrees. The models can be used to estimate average, minimum and maximum values of the additional vegetation attenuation in moderate climate woodlands.
Keywords :
mobile satellite communication; vegetation mapping; C-band; L-band; S-band; climate woodland; empirical linear model; forested area; frequency 2 GHz; frequency 3.5 GHz; frequency 5 GHz; frequency 6.5 GHz; ground terminal; high elevation link; mobile satellite link; satellite service; seasonal additional attenuation; summer vegetation shadowing; vegetation attenuation; Attenuation; Attenuation measurement; L-band; Satellites; Shadow mapping; Vegetation; Attenuation measurement; mobile satellite link; modeling; propagation measurement;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2011.2165507
Filename :
5993516
Link To Document :
