A Calibration Method for 77GHz Millimeter-Wave Radar Based on Virtual Instrument Technology

2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2021-05-17 DOI:10.1109/I2MTC50364.2021.9459852

Tianqi Xu, Lei Du

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引用次数: 2

Abstract

77GHz millimeter-wave (MMW) radar is mature in technology and widely used in intelligent vehicle environment perception, vehicle safety distance detection, etc. In order to evaluate and ensure its working performances in practical use, the target kinematics parameters of 77GHz MMW radar must be calibrated before installation. A simulated calibration method for target kinematics parameters of 77GHz 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 of the simulated calibration instrument are analyzed. A 77GHz 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, MMW radar resolution and accuracy of the simulated calibration instrument. The expand uncertainty of the simulated speed and range are 0.7km/h and 0.12m respectively, where k=2. The simulation and uncertainty evaluation results preliminarily verify the feasibility of the simulated calibration method and the performance of the simulated calibration instrument.

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基于虚拟仪器技术的77GHz毫米波雷达标定方法

77GHz毫米波雷达技术成熟，广泛应用于智能车辆环境感知、车辆安全距离检测等领域。为了评估和保证其在实际使用中的工作性能，必须在安装前对77GHz毫米波雷达的目标运动学参数进行标定。提出了一种基于虚拟仪器技术的77GHz毫米波雷达目标运动学参数仿真标定方法，并研制了一种基于虚拟仪器的仿真标定仪器。分析了模拟校准方法的基本原理和模拟校准仪的主要设计思想。选取77GHz毫米波雷达样品进行速度和距离模拟校准，从模拟校准仪的测量重复性、毫米波雷达分辨率和精度等方面对校准结果的不确定度进行了分析和评价。模拟速度和里程的扩展不确定度分别为0.7km/h和0.12m，其中k=2。仿真和不确定度评定结果初步验证了模拟校准方法的可行性和模拟校准仪器的性能。

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2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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