Title :
Inversion scheme for ground penetrating radar that takes into account the planar air-soil interface
Author :
Hansen, Thorkild B. ; Johansen, Peter M.
Author_Institution :
Schlumberger-Doll Res., Ridgefield, CT, USA
fDate :
1/1/2000 12:00:00 AM
Abstract :
A three-dimensional (3D) diffraction-tomography inversion scheme that takes into account the planar air-soil interface is derived for fixed-offset ground penetrating radar (GPR). The inversion scheme is based on a plane-wave expansion of the dyadic Green´s function for the interface problem and the first Born approximation. It can be implemented efficiently with fast Fourier transforms. Numerical examples demonstrate the importance of taking into account the air-soil interface and the ability of the inversion scheme to locate strong scatterers such as metal pipes
Keywords :
buried object detection; geophysical techniques; inverse problems; radar detection; remote sensing by radar; terrain mapping; air-soil interface; buried object detection; diffraction-tomography inversion scheme; dyadic Green´s function; fast Fourier transform; first Born approximation; fixed-offset; geophysical measurement technique; ground penetrating radar; interface problem; inversion scheme; land surface; metal pipe; planar interface; plane-wave expansion; terrain mapping; three-dimensional method; Antennas and propagation; Approximation methods; Buried object detection; Diffraction; Electromagnetic scattering; Fast Fourier transforms; Ground penetrating radar; Radar antennas; Radar scattering; Receiving antennas;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
