雷达科学与技术2025，Vol.23Issue(2)：142-149,157,9.DOI:10.3969/j.issn.1672-2337.2025.02.004
基于变步长双曲正切LMS的汽车雷达干扰抑制方法
Automotive Radar Interference Mitigation Based on Variable Step Size Hyperbolic Tangent LMS
摘要
Abstract
The large number of millimeter-wave frequency modulated continuous wave radars on the automotive system beget severe mutual interference among these radars.An interference mitigation method based on a novel hyper-bolic tangent least mean square with variable step size is proposed to handle the mutual interference,which exploits the impulse-like characteristics of the interfering signal.As a result,the increment of noise level caused by interference is effectively alleviated.The novel cost function that embeds the normalization error employs the hyperbolic tangent func-tion,which improves the interference mitigation ability and the robustness.Moreover,the logistic function of the normali-zation error is used to realize the automatic updating of the step size.The results from the numerical simulation and the field data demonstrate that,compared with several existing methods,this proposed method can offer competitive signal-to-interference ratio,which shows the superiority of the proposed method in terms of anti-interference performance.关键词
汽车雷达/雷达干扰/变步长/干扰抑制/自适应降噪Key words
automotive radar/radar interference/variable step size/interference mitigation/adaptive noise reduction分类
信息技术与安全科学引用本文复制引用
肖垂欣,石长安,郑春弟,王爱国..基于变步长双曲正切LMS的汽车雷达干扰抑制方法[J].雷达科学与技术,2025,23(2):142-149,157,9.基金项目
国家自然科学基金(No.61972092,62176082) （No.61972092,62176082）
