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24 February 2004 Electromagnetic model of rice crops for wideband POLINSAR
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Abstract
A coherent electromagnetic model developed for estimating the radar backscatter from rice crops is presented. This model is based on the first order solution of the polarimetric backscatter response as a function of the sensor parameters and the physical description of the rice plants. This paper presents a comparison between simulations obtained by the model and experimental data collected at the European Microwave Signature Laboratory (EMSL). This laboratory is currently carrying out several campaigns of measurements over different growing stages of a rice crop sample. For the first stage of growing, simulated and measured backscattering coefficients, at HH, HV and VV channels, show a reasonable agreement. The sensitivity and dependence of the radar signal with respect to the input parameters (incidence angle, frequency and morphological characteristics of the rice plants) has been studied in order to achieve a future parameter inversion. The final aim of this work is to establish a reliable inverse algorithm to retrieve biophysical parameters of rice crops from radar measurements.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joaquim Fortuny-Guasch, Alberto Martinez-Vazquez, Juan M Lopez-Sanchez, and J. David Ballester-Berman "Electromagnetic model of rice crops for wideband POLINSAR", Proc. SPIE 5232, Remote Sensing for Agriculture, Ecosystems, and Hydrology V, (24 February 2004); https://doi.org/10.1117/12.511269
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