Combining delta-phi velocity measurement and DBSCAN clustering to localize slowly moving objects in short ranges with limited slow-time radar data

A method to localize slowly moving objects in range-azimuth space using a Frequency-modulated continuous-wave (FMCW) multi-input multi-output (MIMO) radar is proposed. Unlike traditional range- velocity calculation by 2D-FFT, this method calculates the velocity information in the phase domain, which yields a higher velocity resolution with very few slow-time data required. The proposed method was tested to localize a slowly moving retro-reflector and achieved satisfactory results.