"Phased-MIMO radar: Transmit beamspace, transmit-receive beamforming, parameter estimation, and applications"

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The desire for more and more advanced radar technologies is dictated by radar's ubiquitous applicability, ranging from micro-scale radars applied in biomedical engineering to macro-scale radars used in radioastronomy. Modern radar technology processes ever-increasing quantities of information and offers high spatial resolution. However, future radar applications will stretch radar systems beyond their fundamental sensitivity and information limits. For example, current radar technology offers little to counter stealth technology as it is fundamentally inhibited by energy transmitted and received. The prime goal of the proposed research program is to develop and advance a new radar paradigm which combines the advantages of the recent radar technique known under the name multiple-input multiple-output (MIMO) radar (main advantage is waveform diversity) with the advantage of traditional phased-array radar (coherent processing). The use of MIMO radar with colocated antennas enables improving spatial resolution, increasing the maximum number of detectable targets, improving parameter identifiability, virtually extending the array aperture, and enhancing the radar flexibility. However, these advantages come at the price of losing coherent processing gain.