High-resolution Real-time 4D Imaging Radar System for Automotive

SRIR144V3 is a real-time 4D imaging radar system. This radar system is based on the RAA270205 high-performance CMOS radar transceiver IC. SRIR114V3 achieves some of the best-in-class spatial resolutions by cascading three RAA270205 transceivers, each having four independent transmit and four independent receive channels, in a multi-input multi-output configuration (MIMO). This arrangement of 12 transmit and 12 receiver combinations produces 144 virtual channels which are used to sample both horizontal and vertical space ahead. SRIR144V3 for LRR mode can combine multiple independent transmit channels in phase to maximize the range. This helps detect targets beyond 250m for long-range applications.

SRIR144V3 is equipped with state-of-the-art distributed object tracking algorithms based on advanced tracking algorithms and data association. This allows the radar system to track independently moving objects even in crowded environments such as dense traffic. Also, the ego velocity can be computed by the radar for terrain-rich environments allowing the radar to track independent moving objects. Radar data from multiple transceivers is sent to an off-the-shelf DSP or GPU which does all the radar signal processing steps including high-density point cloud generation, clustering, tracking, and classification. Renesas provides software to run on ECU units making it power and cost-efficient for customers.