摘要
环境感知雷达对目标运动学参数的准确测量是实现智能网联汽车安全、高效驾驶的基本保障。现有主流的商用车载雷达传感器中,24 GHz和77 GHz毫米波雷达因工作频段和工作带宽的不同,在速度、距离、角度测量性能方面存在一定差异。为了评价24 GHz和77 GHz毫米波雷达传感器的速度测量性能,研制并搭建了一套基于虚拟仪器技术的毫米波雷达目标运动参数模拟校准装置,通过24 GHz和77 GHz两款毫米波雷达样品的速度模拟校准结果验证了模拟校准装置速度模拟的可行性和准确性。对两款毫米波雷达的速度模拟校准结果进行了不确定度评估和比较,模拟校准结果和速度测量不确定度评估结果表明:该款77 GHz毫米波雷达样品的速度测量重复性和准确性均优于该款24 GHz毫米波雷达样品。
Accurate measurement of kinematic parameters of targets by environment-sensing sensors is the basic requirement for safe and efficient driving of intelligent connected vehicles. Among existing mainstream commercial vehicleborne radar sensors, 24 GHz and 77 GHz millimetre-wave radars are different in speed, distance, and angle measurement performance because of their different working frequency bands and bandwidths. In order to evaluate the speed measurement performance of 24 GHz and 77 GHz millimetre-wave radars, we developed a simulated calibration facility for kinematic parameters of millimetre-wave radar targets based on the virtual instrument technique, and verifies The feasibility and the speed simulation accuracy of the simulated calibration facility were verified using simulated speed calibration results of 24 GHz and 77 GHz millimetre-wave radar samples. The results of the simulated calibrations and comparison of the uncertainty evaluations showed that the speed measurement repeatability and accuracy of the 77 GHz millimetre-wave radar sample are superior to that of the 24 GHz millimetre-wave radar sample.
作者
徐天琪
杜磊
白杰
孙桥
XU Tianqi;DU Lei;BAI Jie;SUN Qiao(National Institute of Metrology,Beijing 100029,China)
出处
《计量科学与技术》
2021年第9期3-7,65,共6页
Metrology Science and Technology
基金
国家重点研发计划(2017YFF0205006)
质检国际科技合作人才境外培养计划(AKYGH1801)
中国计量科学研究院基本科研业务费项目(AKYZZ2008)资助项目。
