基于相空间重构的辐射源个体识别技术综述  

A Review of Specific Emitter Identification Based on Phase Space Reconstruction

作　　者：赵雨睿 黄知涛[1] 王翔 ZHAO Yurui;HUANG Zhitao;WANG Xiang(College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学电子科学学院,长沙410073

出　　处：《雷达学报（中英文）》2023年第4期713-737,共25页Journal of Radars

基　　金：国家自然科学基金(62271494)。

摘　　要：辐射源个体识别技术,起源于雷达目标精确辨识任务,旨在根据截获的电磁信号提取辐射源独有的指纹特征,并进一步辨识辐射源个体身份的技术。相空间重构技术,作为一种有效的时间序列分析技术,可以从一维时间序列中重构一个与原系统非线性动力学特性相同的相空间。相空间重构技术自2007年开始被诸多学者引入辐射源个体识别问题中。然而,该项技术研究时间较短且分布较为分散,尚未形成清楚的发展脉络。对此,该文旨在系统性地总结归纳基于相空间重构的辐射源个体识别技术。首先,在介绍相空间重构技术的基础上,论述了相空间重构技术应用于辐射源个体识别的理论依据。其次,从方法框架、算法分类、算法应用效果、算法初步对比4个维度,介绍了基于相空间重构技术的辐射源个体识别技术的研究现状。仿真实验结果表明,该项技术能够有效地捕捉辐射源硬件的非理想性,胜任目标精确辨识任务,并可通过特征融合等手段提升算法鲁棒性。最后,总结现有方法的不足并展望其未来发展前景。Specific Emitter Identification(SEI),originated from identifying radar systems,is to extract fingerprint features from the intercepted signals for recognizing emitter identifies.Phase Space Reconstruction(PSR)is a powerful technique in time series analysis that can reconstruct a phase space from a one-dimensional time series,preserving the nonlinear dynamic characteristics of the original system.The integration of phase space reconstruction into SEI began in 2007.However,due to the recent and diverse nature of research focused on PSR-based SEI methods,it is challenging to establish a clear context for its development.To address this issue,this paper aims to systematically summarize SEI methods based on phase space reconstruction.First,we introduce phase space reconstruction technology and emphasize the necessity and feasibility of applying it in SEI.Next,we present a comprehensive framework,classification,application,and comparison of PSR-based SEI methods.Simulation experiments demonstrated that PSR-based SEI methods can effectively describe the nonidealities of emitter hardware components and accomplish the target identification task.In addition,we verify that feature fusion enhances the algorithm’s robustness.Finally,we summarize the limitations of existing methods and outline prospects for future development.

关 键 词：辐射源个体识别 相空间重构技术 非线性动力学 指纹特征 目标识别 

分 类 号：TN95[电子电信—信号与信息处理]