Performance Evaluation of 24GHz FMCW Radar-based Blind-spot Detection and Lane-change Assistance under Dynamic Driving Conditions in a Vehicle Proving Ground

In this paper, an integrated mid-range automotive radar system with both Blind Spot Detection (BSD) and Lane Change Assistance (LCA) functions was developed. The system’s maximum detection range was extended to 80m with an update time of 50ms or less. To assess the system’s performance in real-world driving conditions, complex dynamic driving scenarios, including lane changing and lane following, in both straight and curved road environments were tested at an automotive proving ground. The developed integrated Blind-Spot Detection (BSD) and Lane Change Assistance (LCA) radar system was evaluated to determine its accuracy in detecting obstacles in the BSD and LCA regions and distinguishing true and false targets. The system demonstrated high probability of detection (Pd) of 94.4% and low false alarm rate (Fa) of 2.4%. BSD performance showed a Pd of 96.0% and 91.3% for constant velocity and longitudinal movement, respectively. LCA performance showed a Pd of 90% or higher and a Fa of 3% or less. The system was effective in enhancing road safety.