Spectrum Sharing Radar: Coexistence via Xampling

We present a Xampling-based technology enabling interference-free operation of radar and communication systems over a common spectrum. Our system uses a recently developed cognitive radio (CRo) to sense the spectrum at low sampling and processing rates. The Xampling-based cognitive radar (CRr) then transmits and receives in the available disjoint narrow bands. Our main contribution is the unification and adaptation of two previous ideas-CRo and CRr-to address spectrum sharing. Hardware implementation shows robust performance at SNRs up to -5 dB.