Retrieval of Parameters for Three-Layer Media with Nonsmooth Interfaces for Subsurface Remote Sensing

Figure 6

Error in RCS as a function of layer separation. At higher frequencies error variation displays overdamped characteristics. Simulation parameters: frequency = 1150 MHz, amplitude = 3.5cm, period = 2 m, 𝜖_𝑟1=5.5+𝑖, 𝜖_𝑟2=35+2𝑖, 𝜎_rms1=2cm, 𝑙₁=20cm, 𝜎_rms2=5cm, and 𝑙₂=20cm.