基于虚拟仪器技术的77 GHz毫米波雷达目标运动参数模拟校准装置  

Simulated calibration instrument for target kinematics parameters of 77 GHz millimeter-wave radar based on virtual instrument technology

作　　者：徐天琪 杜磊[1] 张殿龙[1] Xu Tianqi;Du Lei;Zhang Dianlong(National Institute of Metrology,Beijing 100029,China)

机构地区：[1]中国计量科学研究院,北京100029

出　　处：《电子测量与仪器学报》2021年第8期118-125,共8页Journal of Electronic Measurement and Instrumentation

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。

摘　　要：77 GHz毫米波雷达技术已臻成熟且被广泛应用于智能汽车环境感知、机动车安全车距检测等领域。为了评价和确保其在实际使用中的工作性能,77 GHz毫米波雷达的目标运动参数在使用前必须进行校准。提出了基于虚拟仪器技术的77 GHz毫米波雷达目标运动参数模拟校准方法,并搭建了一套基于虚拟仪器技术的模拟校准装置。分析了模拟校准方法的基本原理以及模拟校准装置的主要设计思路与技术参数,选取了一款77 GHz毫米波雷达样品进行速度与距离模拟校准试验,从测量重复性、雷达分辨力及模拟校准装置精度等方面对试验结果进行了不确定度评定。速度与距离模拟校准试验结果的扩展不确定度分别为0.7 km/h和0.12 m(k=2),初步验证了模拟校准方法的可行性及模拟校准装置的模拟性能。77 GHz millimeter-wave(MMW)radar technology is mature and widely used in intelligent vehicle environment perception,vehicle spacing measurement for driving safety,etc.In order to evaluate and ensure its working performances in practical use,the target kinematics parameters of 77 GHz MMW radar must be calibrated before being used.A simulated calibration method for the target kinematics parameters of 77 GHz MMW radar based on virtual instrument technology is proposed and a simulated calibration instrument based on virtual instrument is developed.The basic principle of the simulated calibration method and the main design ideas and technical parameters of the simulated calibration instrument are analyzed.A 77 GHz MMW radar sample is chosen for speed and range simulated calibration,and the uncertainty of the calibration results is analyzed and evaluated from the aspects of measurement repeatability,radar resolution and accuracy of the simulated calibration instrument.The expand uncertainty of the simulated speed and range are 0.7 km/h and 0.12 m respectively(k=2),which preliminarily verifies the feasibility of the simulated calibration method and the performance of the simulated calibration instrument.

关 键 词：计量学 77 GHz毫米波雷达 虚拟仪器 模拟校准 运动参数 

分 类 号：TN955[电子电信—信号与信息处理]