基于异常点重构的调频引信抗扫频干扰方法  

Anti-sweep jamming method for FM fuze based on outlier reconstruction

作　　者：段乐帆 郝新红[1] 陈齐乐 DUAN Lefan;HAO Xinhong;CHEN Qile(Science and Technology on Electromechanical Dynamic Control Laboratory,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学机电动态控制重点实验室,北京100081

出　　处：《北京航空航天大学学报》2025年第4期1377-1384,共8页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(61973037)。

摘　　要：针对调频引信对抗扫频式干扰的问题,提出一种基于异常点重构的调频引信抗扫频干扰方法。该方法基于迭代滤波分解(IFD)算法,将引信中频信号分解为本征模态函数(IMF)分量;扫频干扰在IMF分量中表现为异常点,对IMF分量进行异常点检测与消除,并利用长短时记忆(LSTM)网络构建数据重构网络模型,对异常点部分进行数据重构,可以实现对扫频干扰的抑制。通过仿真验证了所提方法的有效性,结果表明该方法提高了调频引信对抗扫频式干扰的能力。An anti-sweep jamming method for frequency modulation(FM)fuze based on outlier reconstruction was proposed for the problem of FM fuze against sweep jamming.Based on the iterative filtering decomposition(IFD)algorithm,the intermediate frequency signal of fuze was decomposed into intrinsic mode function(IMF)components.Sweep jamming was represented as outliers in the IMF components.By detecting and eliminating outliers in the IMF components and using a long short-term memory(LSTM)network to build a data reconstruction network model,the data of outliers was reconstructed,and the sweep jamming could be suppressed.The effectiveness of the proposed method was verified by simulation.The results show that the proposed method improves the ability of FM fuze against sweep jamming.

关 键 词：调频引信 扫频式干扰 抗干扰方法 异常点重构 迭代滤波分解 长短时记忆网络 

分 类 号：V221.3[航空宇航科学与技术—飞行器设计] TB553[理学—物理]