The cylindrical-wave approach as a useful tool for defining reference scenarios for inverse and imaging techniques

The so-called Cylindrical-Wave Approach (CWA) has been developed in last years as a method for the analysis of typical forward scattering problems. It is a method that can be used to solve, in an accurate way, two-dimensional problems involving scatterers showing one of the dimensions very large with respect to the wavelength of operation and to the other dimensions. This happens quite frequently in applicative scenarios like for example the search, by using electromagnetic pulses, of pipes or conduits in the subterranean part of a city, or also if one looks for the presence of metal rods as structural elements of a pavement, etc. In this presentation, we would like to show how the method has been extended to treat several possible layouts of general interest and propose it as a useful tool for defining reference scenarios for inverse and imaging techniques.