A layer stripping method for numerical solution of the GPR problem in a layered medium
This work addresses a domain-specific problem in geophysical imaging, offering an incremental improvement for analyzing layered media under controlled conditions.
The authors tackled the problem of processing ground penetrating radar data in layered media by proposing a numerical method combining layer stripping with complex frequency domain continuation, achieving numerical efficiency under specific assumptions like slow electrical changes and sufficient layer thickness.
A numerical method for processing the data of ground penetrating radars for a piece-wise continuous layered medium is proposed. The method combines the layer stripping technique with numerical continuation of data into the complex frequency's domain. The accuracy of the method is analyzed. Error estimates are obtained and numerical testing is performed. They demonstrate numerical efficiency of the method under certain assumptions such as: electrical characteristics inside each layer change slowly, the thicknesses of the layers are at least of the order of the wavelength, conductivity of the medium is not high.