Backscattering from Multilayer Soil and Its Application to Deep Soil Moisture Estimation
Zhang Wen-ji ①② Zhang Xiao-juan① Li Fang①
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(Graduate University of the Chinese Academy of Sciences, Beijing 100039, China)
Abstract：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.
2008, Vol. 30 
