Automotive ST-CDM MIMO Radar Imaging

High Doppler sidelobes in slow-time code-division multiplexing (ST-CDM) radars, arising from residuals of the phase codes, pose significant challenges for their commercial use in automotive MIMO radar industry. We apply pseudo-random binary codes in the slow-time domain and propose the ST-IAA algorithm based on the iterative adaptive approach (IAA) to address the challenge of high Doppler sidelobes in ST-CDM radars. Numerical and experimental examples are presented to demonstrate the imaging performance of the ST-CDM MIMO radar utilizing the ST-IAA algorithm.