现代雷达2025，Vol.47Issue(7)：65-72,8.DOI:10.16592/j.cnki.1004-7859.20240301002
基于CFAR-ProxSGD车载调频连续波雷达干扰抑制方法
Interference Mitigation Method of Automotive Millimeter Wave Radar Based on CFAR-ProxSGD
李家强 1刘浩波 1喻庞泽 1姚昌华 1陈金立1
作者信息
- 1. 南京信息工程大学 电子与信息工程学院,江苏 南京 210044
- 折叠
摘要
Abstract
Aiming at the problem of cross interference between automotive frequency modulated continuous wave radars,a interfer-ence mitigation method based on CFAR-ProxSGD is proposed in this paper.Firstly,the radar received signal with interference is converted to time-frequency domain by short-time Fourier transform.The one-dimensional CFAR detector along each frequency point is used to detect the interference position and the amplitude correction method is used to initially suppress the interference.Then,combining the time-domain sparsity of the interference signal and the frequency-domain sparsity of the target echo,the resid-ual interference is iteratively optimized by using the proximal subgradient descent method,and the interference signal is ultimately eliminated and the signal is reconstructed.To verify the performance of the algorithm,numerical simulations in multi-target and multi-interference source scenarios were conducted on the software platform,and real measurement data were obtained based on the AWR1843 millimeter-wave radar and DCA1000 data acquisition system.The experimental results show that the proposed algorithm can effectively suppress the interference signal,reduce the frequency-domain background noise and improve the target detection ca-pability of the millimeter-wave radar system in the traffic environment.关键词
毫米波雷达/干扰抑制/恒虚警检测/次梯度下降/软阈值Key words
millimeter wave radar/interference mitigation/constant false alarm rate/subgradient descent/soft threshold分类
信息技术与安全科学引用本文复制引用
李家强,刘浩波,喻庞泽,姚昌华,陈金立..基于CFAR-ProxSGD车载调频连续波雷达干扰抑制方法[J].现代雷达,2025,47(7):65-72,8.
