| Despite ground penetrating radar's increasing popularity, the resolution and noise content of the signal has kept it from accurately imaging structures in the ground. At the same time, a new tool for the analysis of biological samples has been developed called optical coherence tomography. This tool has been successful in generating high resolution tomographic images of inhomogeneous, dispersive samples. In an attempt to improve the design of a ground penetrating radar system, optical coherence tomography is analyzed, and then the results are applied to the design of a ground penetrating radar system. From the results of this analysis, two different ground penetrating radar systems are designed. The first is a spread spectrum system that closely emulates optical coherence tomography. The second design emits a pulse that solves some of the problems in the first design. A planar log spiral antenna is constructed, as the first step in building a system. |
