Effect of electromagnetic parameters of the medium on the GPR data

The contrast of dielectric permittivity is very necessary for the detection of objects by ground penetration radar (GPR). The objective of this work is to study the effect of dielectric permittivity on signal quality (GPR). For our simulations scenario, two frequencies are used, 800 MHz to probe three targets of different electrical properties in a homogeneous geological environment, and 1600 MHz for two blocks of concrete with different conditions in terms of relative permittivity and humidity. We discuss the results obtained for predicting the effect of the dielectric constant on the anomalies identified by the GPR. Reflexw is a software, based on the FDTD numerical method, is one of the geophysical processing and interpretation software available for the design and simulation of the various models studied. Finally, through our simulation results and field experiments, we concluded that the value of permittivity is primarily dependent on water content, which has a significant impact on the rate of propagation, as well as on the attenuation of the reflected energy due to absorption and reflection in the different components of geological environments