摘要
单通道调频连续波(frequency modulated continuous wave,FMCW)雷达体积小、成本低,近年来是近距离目标探测领域的一个研究热点.然而,动目标的速度-方位耦合问题会导致波束形成时测角模糊.针对这一问题,提出了一种动目标补偿方法.依据此方法给出一种单通道FMCW雷达信号处理流程,并进行了仿真和实验验证,结果表明:动目标补偿方法可以有效地解决单通道FMCW雷达动目标探测时的测角模糊问题;应用此单通道FMCW雷达信号处理流程,可以实现对动目标的有效探测.
Single channel frequency modulated continuous wave(FMCW)radar is attracting considerable critical attention in recent years due to its small size and low cost.However,the velocity-angle coupling problem occurs in a moving scenario,which eventually leads to obstacles for the application of beamforming.For this problem,the paper proposes a motion compensation method,and based on this method,a single channel FMCW radar signal processing flow is proposed.Numerical and experimental results are provided to validate the proposed method.It is suggested that the velocity-angle coupling problem can be effectively solved by the proposed motion compensation method,and moving targets can be effectively detected by using this single channel FMCW radar signal processing flow.
作者
杨凯
林沂
付云起
YANG Kai;LIN Yi;FUYunqi(The 13th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050051,China;College of Electronics Science,National University of Defense Technology,Changsha 410073,China)
出处
《电波科学学报》
CSCD
北大核心
2021年第2期256-263,共8页
Chinese Journal of Radio Science
基金
国家自然科学基金(61901492)。
