Channel Measurement and Ray-Tracing Simulation for 77 GHz Automotive Radar

被引：20
作者：
He, Danping [1 ,2 ]
Guan, Ke [1 ,2 ]
Ai, Bo [1 ,2 ]
Zhong, Zhangdui [1 ,2 ]
Kim, Junhyeong [3 ]
Chung, Heesang [3 ]
Hrovat, Andrej [4 ]
机构：
[1] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, Frontiers Sci Ctr Smart High Speed Railway Syst, Beijing 100044, Peoples R China
[3] Elect & Telecommun Res Inst, Moving Wireless Network Res Sect, Daejeon 34129, South Korea
[4] Jozef Stefan Inst, Dept Commun Syst, Ljubljana 1000, Slovenia
来源：
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS | 2023年 / 24卷 / 07期
基金：
北京市自然科学基金;
关键词：
Radar; Radar cross-sections; Sensors; Millimeter wave communication; Automotive engineering; Autonomous vehicles; Testing; Autonomous driving; channel measurement; channel model; mmWave radar; ray-tracing; SCATTERING; VEHICLES; TRANSMISSION;
D O I：
10.1109/TITS.2022.3208008
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Millimeter-wave automotive radar is essential for realizing autonomous driving. Realistic channel model and simulation are important for system and sensing algorithm design. This work introduces channel measurements and ray-tracing (RT) channel simulations for frequency modulated continuous wave (FMCW) automotive mmWave radar. The 77 GHz channel measurements in an urban crossroads environment are presented. The dominant echoes (multi-path components) of the measurement are detected and matched with corresponding objects for each frame. A measurement-based electromagnetic (EM) parameter estimation method is proposed to find the optimal parameter set that minimizes the error of simulated radar cross section (RCS). As a result, the issue of lacking reliable EM material parameters for RT simulation at 77 GHz frequency band is tackled. Simulation results are validated in power, range, velocity, and angle domains with the provided EM parameter set. Extending validated RT simulations in similar environments with various configurations allows more reliable channels for rigorous testing without the limitation of channel measurement.
引用
收藏
页码：7746 / 7756
页数：11
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