具有抗交叉干扰的汽车防碰撞雷达波形设计  

Anti-Interference Waveform Design for Automotive Radar

作　　者：杨晓康 张昆帆[1] 赵拥军[1] 张梦凯 齐艳丽[1] 

机构地区：[1]信息工程大学,河南郑州450001 [2]长葛市电力工业公司,河南长葛461500

出　　处：《信息工程大学学报》2017年第4期437-441,共5页Journal of Information Engineering University

基　　金：国家自然科学基金资助项目(41301481)

摘　　要：随着装配有防碰撞雷达车辆数量的增加,汽车防碰撞雷达在道路上受到交叉干扰影响的概率越来越高。为了保持防碰撞雷达的可靠性,抗交叉干扰技术起到的作用日益凸显。借鉴传统雷达频率捷变的方法,设计了一种从固定数量的恒定频率和三角频率调制两种波形中随机选取一组组合,作为雷达发射波形的新方法,其中恒定频率和三角波斜率随机周期性改变,从而很大程度上抑制车载雷达的交叉干扰。文章分析了波形随机组合的方法和波形设计的原理,结果表明,此方法既可以实现车载防碰撞雷达多目标检测的功能,又可以有效减少交叉干扰带来的虚警率。With the increasing amount of car equipped with collision avoidance radar,mutual interference is becoming a problem when the cars run on the roads.The mutual interference cancellation techniques are getting more and more important to preserve the reliability of the automotive radar.Referring to the conventional frequency-agile radar,this paper proposes a new signal design method for automotive radar that uses two groups combination from a fixed number of constant frequency and triangular frequency modulation waveform,and the constant frequency and triangle wave slope change randomly.This way mutual interference between the automotive radars can be most suppressed.This paper analyzes the waveform random combination method and the principle of waveform design.The results demonstrate that this method can not only realize multi-target detection of the vehicle collision avoidance radar,but also effectively reduce the false alarm rate resulted from mutual interference.

关 键 词：车载防碰撞雷达 交叉干扰 波形组合 连续波 线性调频连续波 

分 类 号：TN957.51[电子电信—信号与信息处理]