Diffraction tomography method development in wide frequency range

Abstract

The described systems combine the possibilities of tomograph operating "on passage" as well as tomograph operating in a regime of subsurface measurements. It is shown that if the incident wave is arranged at the Brewster angle, the surface reflection is decreased and imaging by microwave tomography method or the stepped frequency radar method of buried weakly scattered objects like mines etc. is better than at the non-Brewster angle. A new reduction method of the surface contribution in an image of subsurface objects is offered and considered. The essence of the method consists in using leaky waves of a transmission line of electromagnetic energy, when the line is located close to a surface, for illumination of subsurface objects. The suggested version of tomography is orientated towards applications in industry, medicine, detection and identification of abandoned objects and other fields. © 2015 Elsevier B.V., All rights reserved.