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AuRaSim: A Ray-Tracing Automotive FMCW Radar Simulator for Dynamic Scenarios

AuRaSim is a ray-tracing-based automotive FMCW radar simulation framework that generates coherent multi-channel ADC data for dynamic scenarios. It builds dynamic scenes with Blender, performs GPU-accelerated electromagnetic ray tracing with Sionna RT, and adds path-level complex-coefficient propagation, motion-aware Doppler modeling, and waveform-configuration-driven ADC cube synthesis. In a digital twin scenario, the simulated and measured range-Doppler maps achieve an RMSE of 0.147 and a PSNR of 16.93 dB.

Part of the event: AuRaSim: A Ray-Tracing-Based Automotive FMCW Radar Simulation Framework

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