Development of a Prototype High-Frequency Ground-Penetrating Radar System.

摘要

Ground-penetrating radar has proven to be an excellent tool for nondestructive evaluation and inspection of highway structures. To address the limitations of the existing systems, a research project has been undertaken to develop a compact high-frequency GPR for efficient and accurate detection of subsurface problems for highway applications. The development of each subsystem, the pulse generator, the receiver, and the antenna is discussed. These components have been integrated to form a GPR prototype, which was tested in the laboratory. The results of this first GPR prototype test were promising. Work is under way to produce a field unit. To this end, design improvements will be made to optimize the performance of all of the components. This final system will be realized using microwave integrated-circuit technology to ensure its miniaturization, low cost, and high efficiency.