DocumentCode :
1221914
Title :
Estimation of coherent field attenuation through dense foliage including multiple scattering
Author :
Koh, Il-Suek ; Wang, Feinian ; Sarabandi, Kamal
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Volume :
41
Issue :
5
fYear :
2003
fDate :
5/1/2003 12:00:00 AM
Firstpage :
1132
Lastpage :
1135
Abstract :
Single-scattering theory is shown to be insufficient for the estimation of effective propagation constant in foliage at high microwave and millimetre-wave frequencies. Clusters of broad leaves and needles are treated as a unit scatterer whose ensemble forward scattering is used in Foldy´s approximation to estimate attenuation rate in foliage. It is shown that single-scattering approximation overestimates forward scattering as high as 3-4 dB at 35 GHz.
Keywords :
electromagnetic wave scattering; vegetation mapping; 35 GHz; Foldy approximation; attenuation rate; broad leaves; coherent field attenuation estimation; dense foliage; forward scattering; microwave frequency; millimetre-wave frequency; multiple scattering; needles; Attenuation; Dielectrics; Electromagnetic propagation; Electromagnetic scattering; Frequency estimation; Needles; Optical scattering; Particle scattering; Radar scattering; Rayleigh scattering;
fLanguage :
English
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
Publisher :
ieee
ISSN :
0196-2892
Type :
jour
DOI :
10.1109/TGRS.2003.813552
Filename :
1206715
Link To Document :
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