The present application relates to a method for controlling a millimeter wave radar, comprising: transmitting a first number of first chirp signals at a first time interval T1 in each frame of millimeter wave transmission period, and receiving a first echo signal of the first chirp signals reflected by a moving target, the first time interval T1 being a linear function about time (S1); performing frequency mixing processing on the first echo signal and the first linear frequency modulation signal to obtain a first intermediate frequency signal, and converting the first intermediate frequency signal into a first discrete intermediate frequency signal (S2); the acceleration information of the moving object is obtained by performing two-dimensional Fourier transform on the first discrete intermediate frequency signal (S3). According to the method and the device, the acceleration information of the moving target object is measured in a short time range by changing the time interval of the signal emission of the millimeter-wave radar, the acceleration of the rear vehicle in the visual blind area of the vehicle is accurately measured in real time, and a foundation is laid for optimizing the lane changing auxiliary function of the vehicle.
本申请涉及一种用于控制毫米波雷达的方法,其包括:在各帧毫米波发射周期内分别以第一时间间隔T1发射第一数量的第一线性调频信号,并接收第一线性调频信号经运动目标物反射的第一回波信号,第一时间间隔T1是关于时间的一次函数(S1);将第一回波信号与第一线性调频信号进行混频处理得到第一中频信号,并将第一中频信号转换成第一离散中频信号(S2);通过对第一离散中频信号进行二维傅里叶变换,求取运动目标物的加速度信息(S3)。根据本申请,通过改变毫米波雷达的发射信号的时间间隔实现在短时间范围内测量运动目标物的加速度信息,实时且准确地测量车辆视野盲区内的后方车辆的加速度,为优化车辆的变道辅助功能奠定基础。
Method for controlling millimeter-wave radar, millimeter-wave radar, method for lane change assistance of vehicle, lane change assistance system, vehicle and computer program product
用于控制毫米波雷达的方法,毫米波雷达,用于车辆的变道辅助的方法,变道辅助系统,车辆和计算机程序产品
2025-02-11
Patent
Electronic Resource
Chinese
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