基于STFT的汽车雷达抗干扰处理方法  

Anti-interference Processing Method of Automotive Radar Based on STFT

作　　者：黄志忠 HUANG Zhizhong(Guilin University of Aerospace Technology,Guilin 541004,China)

机构地区：[1]桂林航天工业学院,广西桂林541004

出　　处：《无线电工程》2021年第4期313-317,共5页Radio Engineering

基　　金：广西高校中青年教师科研基础能力提升项目(2020KY21021)。

摘　　要：线性调频连续波是汽车雷达的常用工作波形,在复杂的交通环境中,汽车雷达的干扰主要来自于周围工作的同类型雷达。针对几种常见的线性调频干扰信号,介绍了基于短时傅里叶变换从时域和频域同时对目标进行检测的信号处理方法。对几种线性调频干扰情况下的目标检测进行了仿真,结果表明,该处理方法可以有效地解决同类型雷达干扰造成的虚警和漏警问题。LFMCW is a common working waveform of automotive radar.In complex traffic environment,the interference of automotive radar mainly comes from the same type of radar working around.Aiming at several common LFM interference signals,a signal processing method based on short-time Fourier transform is introduced to detect the target in time domain and frequency domain at the same time.The simulation of target detection in several cases of LFM interference is carried out.The simulation results show that the method can effectively solve the problem of false alarm and missed alarm caused by the same type of radar interference.

关 键 词：线性调频连续波 汽车雷达 短时傅里叶变换 时域和频域 

分 类 号：TN958[电子电信—信号与信息处理] U463.67[电子电信—信息与通信工程]