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Comparison between Measurements and Scattering Model for Polarimetric Backscattering from Vegetation Canopies  

Hong Jin-Young (Department of Radio Science and Communication Engineering, Hongik University)
Oh Yi-Sok (Department of Radio Science and Communication Engineering, Hongik University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.9, 2006 , pp. 804-810 More about this Journal
Abstract
In this paper, we describe a measurement technique for the backscattering coefficient and ground truth of a vegetation canopy in detail. A simple microwave backscattering model for vegetation canopies is verified by being compared with this measurement. An R-band$(1.7\sim2.0GHz)$ scatterometer system is used to measure the backscattering coefficient of a vegetated area in the Han-river park for various incidence angles and a wide range of the soil moisture contents. It is found that the model agrees quite well with the measurements for co-polarized radar backscatter, and needs a correction for cross polarized radar backscatter.
Keywords
Polarimetric Scatterometer System; Radiative Transfer Theory; Backscattering Coefficient;
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