Subsurface imaging using ground-penetrating radar measurements

Much work has been done toward reconstructing the electrical parameters of an unknown buried object. Many methods, and accompanying results from simulations, have been presented. Most research in the area, however, has been in developing imaging algorithms that have been tested primarily through computer simulation. This paper presents a newly constructed facility for ground-penetrating radar experiments, as well as the proposed applications for such a facility. The test site consists of a sand-filled volume approximately 15 feet long, 13 feet wide, and 7 feet deep. The experimental setup consists of transmitters and receivers in several common configurations, such as the offset VRP, cross-borehole, and surface-to-surface configurations. The motivations for such an experimental site are presented, as well as the imaging algorithms intended for application. These algorithms include migration techniques, SAR processing, Born-iterative method, and diffraction tomography.