This paper investigates signle-antenna radar imaging with a reconfigurable intelligent surface (RIS). Configuring phase shifts in a RIS-aided radar system can be thought as synthetic aperture radar (SAR) imaging with a moving virtual source. With this perspective, the problem is modeled in the wavenumber domain and image forming algorithms are formulated for near and far field regions. Thus, a novel and intuitive perspective has been introduced to the RIS-aided radar imaging formation problem, opening a new avenue for adapting well-known SAR methods in the literature to these systems.
@article{arxiv.2412.13291,
title = {RIS-Aided Radar Imaging Utilizing the Virtual Source Principle},
author = {Furkan H. Ilgac and Mounia Bouabdellah and Aydin Sezgin},
journal= {arXiv preprint arXiv:2412.13291},
year = {2024}
}