Electromagnetic wave scattering from a forest or vegetation canopy: ongoing research at the University of Texas at Arlington

A scattering model for forest or vegetation, based on the theory of electromagnetic wave scattering in random media, is described. The model generalizes the assumptions imposed by earlier models, and the results compare well with measurements from several forest canopies. It is shown how the model e...

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Bibliographic Details
Published in:IEEE antennas & propagation magazine 1993-04, Vol.35 (2), p.18-26
Main Authors: Karam, M.A., Amar, F., Fung, A.K.
Format: Magazinearticle
Language:English
Subjects:
Earth Resources And Remote Sensing
Earth sciences
Earth, ocean, space
Electromagnetic modeling
Electromagnetic radiation
Electromagnetic scattering
Exact sciences and technology
Forestry
Frequency
Optical scattering
Optical surface waves
Q1
Random media
Remote sensing
Soil
Soils
Surficial geology
Vegetation
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Summary:A scattering model for forest or vegetation, based on the theory of electromagnetic wave scattering in random media, is described. The model generalizes the assumptions imposed by earlier models, and the results compare well with measurements from several forest canopies. It is shown how the model elements are integrated to obtain the scattering characteristics of different forest canopies. The scattering characteristics may be displayed in the form of polarimetric signatures, represented by like- and cross-polarized scattering coefficients, for an elliptically polarized wave, or in the form of signal distribution curves. Results illustrating both types of scattering characteristics are given.< >
ISSN:1045-9243
1558-4143
DOI:10.1109/74.207648