Improvement of GPR data interpretability by an enhanced inverse scattering strategy

This paper is inserted in the framework of the inverse scattering with application to GPR data, and is meant to provide a method helping to apply inverse scattering algorithms to electrically large investigation domains. In particular, we focus on the depth slices, that are particularly important in application on cultural heritage, and propose in relationship with the depth slices a strategy that we will call “shifting zoom”, that is specifically a method to mitigate the effects of the limited view angle in the linear tomographic inversion applied on GPR data. In particular, this paper is an extended version of the contribution (Persico et al., 2017a), published in the proceeding of the conference metrology for archaeology 2017. We propose here a validation of the shifting zoom vs. experimental data gathered in a controlled test site and we will show the effect of the shifting zoom on depth slices achieved from these data after a linear inverse scattering processing applied for their focusing.