Conclusion

This article on georadar presents the many steps involved in its implementation. The physical principles are based on the interaction of electromagnetic waves with matter, and concern reflection, diffraction and refraction. The prospecting strategy must be carefully designed to suit the intended application: the choice of antennae (frequency band), the transmission mode (frequency or time) and the acquisition geometry (spatial sampling, spacing between antennae) are the major parameters to be optimally defined. Georadar appears to have considerable potential for a wide range of near-surface prospecting applications. However, its use remains limited in environments with high electrical conductivity. When the environment is favorable to its use, the wealth of information that can be extracted from georadar traces can lead to "over-interpretation". It is therefore necessary to resort to various...