Microwave emissivity characteristics of soil at 10.45 GHz for remote sensor data

In the present paper, an attempt has been made to measure the complex dielectric constant of soil under laboratory condition at 10.45 GHz using the infinite sample method. Emissivity, both for vertical and horizontal polarization, have been calculated using. measured dielectric data and emissivity model. It is found that dielectric constant and emissivity depend upon moisture contents. The measured values of dielectric constant and emissivity are compared with calculated values using Wang-Schmuggee empirical model and Dobson et al empirical model. It is found that both calculated and experimental values are in close agreement. The brightness temperature (Ta) of soils are also calculated with moisture contents using emissivity data.