Extended target detection and localization in 802.11ad/y radars

In this work, we consider an opportunistic mmWave radar obtained by adding a radar receiver to a 802.11ad/y device and we study the problem of detecting and localizing multiple extended (along both the range and Doppler dimensions) targets back-scattering the signal emitted by the communication transmitter. We derive an iterative subspace-based detector/estimator which extracts the prospective targets one-by-one from the superimposed received echoes, after cleaning up the previously-detected signal components. A short-range low-mobility application is discussed to validate the proposed solution.