3D Imaging of Buried Dielectric Targets with a Tomographic Microwave Approach Applied to GPR Synthetic Data
Figure 1
The basic GPR setup analyzed by means of the CAD tool for the forward scattering problem: (a) 3D view of the simulation environment, including a wideband printed monopole antenna placed on the air/ground interface and a buried scatterer; (b) top view of the antenna scanning domain at the interface, with the coordinate system, the grid points, and the numbering of the scanning lines; (c) simulated waveform of the GPR input signal versus time (ns); (d) magnitude spectrum of the input signal versus frequency (GHz); (e) behavior of the antenna return loss (magnitude of the reflection coefficient in dB) versus frequency (GHz) in the matching range; (f) antenna radiation patterns versus elevation angle in polar form, in the (left) and the (right) planes (fixed central frequency GHz); (g) section view for a fixed (central plane) of the magnitude of the electric-field distribution generated by the antenna at the interface in near-field conditions (same fixed frequency GHz).
