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Paper Details

Emissivity and scattering coefficient of tree leaves at 9.5 GHz frequency

D. V. Ahire

Journal Title:Journal of Chemical, Biological and physical sciences

This study presents the experimental results on the dielectric constant of leaves of two tree species at X- band microwave frequencies 9.5 GHz. Leaves from two different tree species viz., Acacia indica (Babool) and Eucalyptus (Nilgiri) have been used in these measurements. Dielectric constants of these tree leaves have been measured by using Waveguide Cell Method. These values of dielectric constants are used to estimate the emissivity and scattering coefficient of leaves of Babool and Nilgiri having different percentage Moisture Contents (MC %) at various incident angles. Estimations of emissivity are made by using emissivity model and scattering coefficient by perturbation Model. For both, vertical and horizontal polarizations, at constant value of incident angle, emissivity of tree leaves is found to decrease significantly with increase in the values of its MC (%) while their scattering coefficient increases significantly with increase in the values of its MC (%) over the range studied. The results on the dielectric constant, emissivity and scattering coefficient for tree leaves at microwave frequency have potential applications in remote sensing of forest and in mobile communications.