Microwave sensitivity analysis of soil texture at C-band with bistatic scatterometer for remote sensing

The main aim of this paper is to check the microwave response on soil texture in specular direction. For this purpose, an indigenous bistatic scatterometer has been assembled at C-band which has facility to change incidence angle from 25deg to 70deg and can take observation in both like polarization (i.e., HH and VV-polarization). Four fields has been prepared with different soil texture (i.e., sand, silt and clay), mainly sand percentage is changed more in comparison to other soil constituents. Moisture and roughness effect on soil texture is also observed. It is observed that sand has a strong influence in specular scattering in case of HH-polarization and this effect is observable for wide range of moisture value. It is noticed that roughness effect is dominant than texture effect. To minimize the roughness effect on texture, polarization analysis has been carried out and it is found that copolarization may be quite helpful to minimize the roughness effect. This type of study will be helpful in near future to design the bistatic radar system for soil parameter monitoring and especially will be helpful for cartwheel satellite system.