Joint application of autocalibration, superresolution and blind multipath estimation with an experimental array

Many sophisticated high-resolution methods have been proposed. The study describes the practical experience in the combined application of superresolution and autocalibration methods for the resolution of multipath signals. An experimental linear array antenna has been used to perform superresolution after applying autocalibration to signals from one or several radiating sources, for example base stations for mobile communication. In case of multipath propagation, the line-of-sight signals are extracted by space-time processing. These line-of-sight signals are then used as a reference for blind channel estimation and are applied to obtain superresolution of sources and reflectors in azimuth and in differential delay. The suggested methods are tested with the real data.