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| | Abstract | | Ground penetrating radar (GPR) is a method of exploring near-surface structure by transmitting high frequency electromagnetic waves into the ground and measuring the travel time of the electromagnetic waves reflected at the buried object. For the simulation of GPR, the Finite Difference Time Domain (FDTD) method is commonly used. We developed a ray tracing program instead of FDTD method for GPR analysis and examined raypaths in the survey area. In this program, the shortest paths to boundaries are set for normal vector at boundaries to simulate the reflection responses. In order to evaluate a performance of this program, we applied the ray tracing program to the data of the field survey at Forest Sasaguri Kyushu University. |
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