Ground-penetrating radar antenna modeling

Detecting subsurface objects by using ground-penetrating radar (GPR) has received considerable interest. In order to interpret radar signals from buried objects, one must have the ability to model a large range of objects, grounds and radar antennas, theoretically or numerically, so that a real GPR system can be simulated. Many investigations have been done for modeling objects (scatterers) and grounds, but few have involved realistic antennas. This paper presents a technique to model real GPR antennas located above a ground in which an object is buried. Numerical results are presented to verify this technique