Feasibility Study into the Identification of Landmines Using UWB Radar: An Analysis Using Synthesized Data

Conclusions

Synthetic data of the GPR problem was created using the FDTD technique. Signals for the scattering from various configurations of buried dielectric objects were calculated and SAR images were created from a bistatic set-up consisting of a single wide-band dipole positioned 10 cm above the ground and 9 receiver points just above the ground. A preprocessing algorithm which focuses the scattered signal which was obtained at all 9 observation points was used with the focusing angle and focusing depth chosen at various values to create a set of new signals. The new signals were used to create SAR images of the buried target. This procedure seems feasible for the detection problem since only one wideband shot was needed, with 9 receiver points. The impulse response at a single receiver point was calculated using a stable deconvolution scheme and Prony’s method was applied in order to extract the complex poles. Preliminary investigations are positive that this technique will prove valuable in the identification problem.