True Topographic 2-D Migration Of Georadar Data

The principal goal of georadar investigations is to determine the geometries of fine<br>structures in the shallow subsurface. If strongly dipping reflections or diffraction<br>hyperbolas are present in the georadar data, migration is a necessary processing step.<br>Classical migration routines normally employed in seismic data processing may not be<br>suitable for georadar data collected across regions of moderate to high topographic relief.<br>To address this problem, we have written a modified Kirchhoff migration program that<br>accounts automatically for antenna separation and topographic variations.