Interferometry Based Radar Imaging by Leveraging Cellular Communication Networks

The communication signals sent from base stations (BSs) in 5G networks can be leveraged for radar sensing, by exploiting the illumination by data communication signals. The technique of interferometry imaging, which has been extensively used in radio astronomy, is used as the mathematical framework for the radar imaging, by exploiting the distances among cellular BSs. To address the near field imaging, different from the far field in radio astronomy, the hyperbola family of constant-distance-difference trajectory is derived. Numerical simulations are carried out for demonstrating the proposed algorithms.