Ray Tracing Method for Ground Penetrating Radar Waves

Ray tracing is the key to ray-based GPR simulations and tomography. We develop a ray tracing method for GPR transmission and reflection based on the wave front expanding approach. It is a flexible and available means to determine the transmitted and reflected ray paths. Its main advantage over the conventional methods is that it can trace the curved ray within a strongly heterogeneous media, and find simultaneously all reflected ray paths from one complicated interface for a pair of transmitter and receiver. Several numerical testing examples show its good results.