线性调频连续波雷达目标参数测量  

Measurement of Target Parameters Using LFMCW Radar

作　　者：颜卫忠 陈栋志 YAN Weizhong;CHEN Dongzhi(Shanghai Aerospace Electronics Co.,Ltd.,Shanghai 201821,China)

机构地区：[1]上海航天电子有限公司,上海201821

出　　处：《无线电工程》2021年第2期129-133,共5页Radio Engineering

摘　　要：为实现线性调频连续波雷达对道路上不同车道不同目标的监测,需通过实验分析雷达对目标参数(距离、速度及角度)的测量精度,而测量精度与目标实际参数的准确标定直接相关。针对上述3个参数的特点,采用金属平板分析距离测量误差;设计了目标角度测量及校正系统,并利用角反射器分析角度测量误差;利用速度恒定的玩具汽车分析速度测量误差。实验测量结果显示,测距误差小于0.3 m,测速误差小于0.5 km/h,测角平均误差小于1°。In order to use the LFMCW radar to monitor different targets in different lanes on the road,it is necessary to analyze the measurement accuracy of the target parameters(range,velocity and angle)of the radar through experiments.And the measurement accuracy is directly related to the accurate calibration of the actual target parameters.In view of the characteristics of the above three parameters,a metal plate is used to analyze the range measurement error.A target angle measurement and correction system is designed,and a corner reflector is used to analyze the angle measurement error.Besides,a toy car with a constant speed is used to analyze the velocity measurement error.The experimental measurement results show that the range measurement error is less than 0.3 m,the velocity measurement error is less than 0.5 km/h,and the average angle measurement error is less than 1°.

关 键 词：线性调频 雷达 参数测量 实验 

分 类 号：T959.6[一般工业技术]