BISTATIC SCATTERING CHARACTERISTICS OF DENSE RANDOMLY DISTRIBUTED CYLINDERS

To study the fundamental characteristics of electromagnetic wave scatt ering of densely distributed random media, we conducted extensive expe riments using millimeter-wave bistatic radar and dielectric cylinders of different sizes and concentrations. Experiments were run with fract ional volume densities of 10% and 30% along with the highly dense case . It is shown that for ka approximate to 6, the dense and highly dense scattering resembles the single scattering characteristics of the cyl inder. For ka approximate to 3 the dense case resembles the single sca ttering case, but the highly dense case exhibits much different behavi or. The experimental results were compared with second-order radiative transfer theory.