Through-The-Wall Radar Imaging: A Comparative Study Of Frequency And Time Domain 3D Imaging Techniques

Through-the-wall radar imaging (TTWRI) techniques are a promising research area for the radar community. These techniques are useful for detecting and identifying objects that are hidden behind walls making them a valuable tool for a variety of applications. From one hand frequency domain approach as diffraction tomography heavily rely on extensive data acquisition through multiple points in space, demanding significant resources and time. In the other hand, time domain techniques that can be performed by using one SAR line as our 3D backprojection method. The contributions of these two different techniques are studied and compared in this article.