Reconstruction of the Field Radiated by GPR Antenna into Ground

A probe-deconvolution technique for a buried probe is developed. The technique is based on an accurate electromagnetic model of a buried probe, which predicts voltage at the output terminals of the probe for any impinging wave. The model is based on analytical solution of a Pocklington equation describing surface current on the probe. The model does not take into account presence of air-ground interface close to the probe. The model has been successfully verified against direct numerical simulations based on Mixed Potential Integral Equation with an appropriate Green function. Special attention has been paid in the verification to the impact of the so-called head wave which is excited by GPR antennas operating in a close proximity to the ground and propagating along air-ground interface.