Implementation of MIMO Beamforming on an OTS FMCW Automotive Radar

Considering the real-time requirements for automotive scenario, a signal processing algorithm is developed using which, processing capability of the Texas Instruments (TI) AWR1642 chipset is presented for the first time as a W-band (77-81 GHz) MIMO-FMCW (multiple-input, multiple-output - frequency modulated continuous waveform) imaging radar with receiver beamforming. Post processing of raw ADC data obtained from the TI chip gives a range resolution of 4.1cm and an angular resolution of 14.2°, which are similar to those predicted by theoretical and simulation results in MATLAB.