Spectral Coexistence in Radar using Xampling

This paper presents a spectrum sharing technology enabling interference-free operation of a surveillance radar and communication transmissions over a common spectrum. A cognitive radio (CRo) receiver senses the spectrum using very low sampling and processing rates. The radar is also modeled as a cognitive system that employs a Xampling-based receiver and transmits in several narrow bands. Our main contribution is the alliance of two previous ideas, CRo and cognitive radar (CRr), and their adaptation to solve the spectrum sharing problem. Finally, we present a hardware realization of our system and demonstrate the SPEctral Coexistence via Xampling (SpeCX) technology through real-time experiments.