4d radar

A high-resolution imaging radar system to enable high-fidelity four-dimensional (4D) sensing for autonomous driving, i. toto hk 4d 2021 e. cinema 4d course , range, Doppler, azimuth, and elevation, through a joint sparsity design in frequency spectrum and array configurations The system uses random sparse step-frequency waveform (RSSFW) to synthesize a large effective bandwidth and a two-dimensional (2D) sparse array to achieve high range resolution profiles and low sidelobes