Two single-shot methods for locating multiple electromagnetic scatterers (Q2862289)

The authors consider a time-harmonic inverse electromagnetic scattering problem, where some information of a scatterer is reconstructed from the knowledge of the far field pattern generated by the interaction of a known incident plane wave and the scatterer itself. In particular, they propose two schemes for locating the connected components of this scatterer from the knowledge of a single far field pattern. The first scheme deals with scatterers having small connected components of general electromagnetic nature, i.e., penetrable obstacles and perfectly conducting obstables. The second scheme takes into account scatterers having perfectly conducting connected components and with size approximately equal to the wavelength of the probing electromagnetic field. Some numerical experiments are reported.