Microwave imaging of composite materials using image processing

This paper presents the results of application of a relatively simple microwave continuous wave reflectometer with an open-ended waveguide antenna for the purpose of nondestructive testing and evaluation of composite materials using their images. It is shown that the resulting original images could not reveal a desired amount of information about the interior of the sample under investigation and the proposed image processing techniques can improve the results in particular as it relates to detecting the targets located at different depths. This paper presents the results of this investigation and a discussion of these results.