Abstract
The use of a microwave scattering model is fundamental to rice monitoring by synthetic aperture radar (SAR), and an ear scattering model is necessary to improve the accuracy of the microwave scattering model of the rice field. A novel rice ear scattering model, the multisphere ear scattering model, was developed by incorporating the microstructure of rice ear panicles, including the ear grain parameters in particular. A virtual ear model was used to simulate the ear morphology, and a multisphere scattering model was used to simulate the ear scattering. The multisphere ear scattering model has the potential to retrieve grain parameters from SAR imagery. The new model was also compared with a traditional two-cylinder ear model; the large discrepancy in the simulation results shows the necessity of carrying out a verification experiment.
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