Backscattering from Multilayer Soil and Its Application to Deep Soil Moisture Estimation
分层土壤后向散射及其在深层土壤湿度探测中的应用

Influence of frequency, incident angle, soil dielectric on the penetration ability of electromagnetic wave is quantitatively analyzed. The backscattering from multilayered soil is studied. The model is validated against known solutions to special cases, which can be used in the inversion of deep soil moisture. The conclusion provides a good reference for the design of low frequency (0.1-1GHz) synthetic aperture radar and inversion of deep soil moisture.