On the imaging applications of ground penetrating radar

This paper presents a brief overview on the imaging aspects of ground penetrating radar (GPR). Different experiments in three fields of investigation are conducted to demonstrate the feasibility of GPR for the imaging of subsurface materials. First, the GPR signatures of electrically and dimensionally different objects located inside the sand pool are obtained and processed into a focused image. The resulted image reveals that even the targets which have inherently low-level returns can be located by GPR. The second experiment is aimed to detect the water leaks from the plastic pipes via GPR technique. It is shown that additional water around the leak manifest itself as reflecting regions in the image, thereby giving information about the leak location. Furthermore, the GPR measurement of concrete column is performed to locate and image the stirrups within the columns. The results dictate the usability of GPR for concrete column analysis in measuring the position and size of stirrups.