Analysis of Channel Characteristics for FMCW Millimeter-Wave Radar in Traffic Scenarios

Millimeter-wave radar technology has gained significant attention due to its promising applications in various fields, including autonomous vehicles, wireless communications, and remote sensing. According to the survey, research on the propagation characteristics of vehicle-mounted radar in the high-frequency range is relatively limited, and there is even less research on channel propagation characteristics in non line-of-sight (NLoS) scenarios. Therefore, this paper focuses on the measurement and characterization of frequency modulated continuous wave (FMCW) millimeter-wave radar channels at traffic intersections, including channel impulse response (CIR) extraction, Doppler frequency, K-factor and root mean square time delay spread (RMS Time Delay Spread). The findings of this study contribute to a deeper understanding of millimeter-wave radar channels and lay the foundation for the design and optimization of millimeter-wave radar systems in various applications.