A microwave tomography approach for a differential configuration in GPR prospecting

The capabilities of a microwave inverse scattering algorithm for ground penetrating radar (GPR) data processing are analyzed. The algorithm is based on the Born approximation (BA) and exploits a differential measurement configuration. This configuration exploits measurements achieved as the difference of the electrical fields gathered in two symmetrical positions with respect to the source. We will discuss how this choice allows to mitigate some bad effects of uncertainties on the knowledge of the background scenario but, on the other hand, affects in a negative way the properties of the relevant scattering operator.