Title :
Comparison of microwave scattering models for leaf
Author :
Pan, Guangdong ; Narayanan, Ram M.
Author_Institution :
Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA
Abstract :
The Generalized Rayleigh-Gans (GRG) approach is used for the scattering cross section computation of leaves at low frequencies, while the Physical Optics (PO) approach is employed at high frequencies. In this paper, the magnitude of the scattering amplitude of the leaf is calculated using the two analytical methods (GRG PO) at different frequencies (i.e., L, C and X bands) and with different leaf shapes (circular and elliptical). In general, the difference between these models is of the order of several dB.
Keywords :
backscatter; geophysical techniques; radar cross-sections; radar theory; remote sensing by radar; vegetation mapping; C-band; L-band; SHF; UHF; X-band; analytical method; backscatter; circular leaf; cross section; elliptical leaf; generalized Rayleigh-Gans approach; geophysical measurement technique; leaf; leaf shape; leaves; microwave scattering model; physical optics; radar remote sensing; scattering amplitude; vegetation mapping; Electromagnetic scattering; Frequency; Message-oriented middleware; Optical computing; Optical scattering; Optical surface waves; Physical optics; Radar scattering; Rayleigh scattering; Shape;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1025135
