系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (2): 727-735.doi: 10.12305/j.issn.1001-506X.2026.02.33

• 通信与网络 • 上一篇    

基于1D-2D-GRU-ResNet的辐射源个体识别方法

刘恒燕(), 方君, 凌青, 闫文君, 于柯远, 张立民   

  1. 海军航空大学,山东 烟台 264001
  • 收稿日期:2024-11-04 修回日期:2025-02-03 出版日期:2025-05-23 发布日期:2025-05-23
  • 通讯作者: 方君 E-mail:2290319679@qq.com
  • 作者简介:刘恒燕(1994—),女,讲师,博士,主要研究方向为信号智能处理
    凌 青(1987—),女,副教授,博士,主要研究方向为通信信号智能处理
    闫文君(1986—),男,副教授,博士,主要研究方向为空时分组码检测、智能信号处理
    于柯远(1992—),男,讲师,博士,主要研究方向为空时分组码检测、智能信号处理
    张立民(1966—),男,教授,博士,主要研究方向为卫星信号处理及应用
  • 基金资助:
    国家自然科学基金(62371465) ;山东省泰山学者专项人才工程(TS201511020);山东省高等学校青创团队计划(2022kj084)资助课题

Emitter individual identification method based on 1D-2D-GRU-ResNet

Hengyan LIU(), Jun FANG, Qing LING, Wenjun YAN, Keyuan YU, Limin ZHANG   

  1. Naval Aviation University,Yantai 264001,China
  • Received:2024-11-04 Revised:2025-02-03 Online:2025-05-23 Published:2025-05-23
  • Contact: Jun FANG E-mail:2290319679@qq.com

摘要:

针对现有辐射源个体识别算法对特征提取不够充分,导致分类准确率提升受限的问题,提出了一种基于一维、二维特征融合的特定辐射源分类方法。该方法通过格拉姆角场将一维序列直接转换为二维数据,分别采用门控循环单元(gated recurrent unit,GRU)及改进的深度残差网络(residual networks,ResNet)提取一维、二维特征,充分利用原始序列特征及机器学习处理二维数据的优势进行互补。仿真结果表明,GRU-ResNet具有更好的特征提取能力,大大提升了辐射源个体识别准确率,迭代次数为50次时,识别准确率较其他网络提升了10%以上,为特定辐射源识别问题提供了新思路。

关键词: 特定辐射源识别, 门控循环单元, 深度残差网络, 特征融合

Abstract:

In existing radar emitter individual identification algorithms, insufficient feature extraction limits the improvement of classification accuracy. To address the issue, a classification method for specific emitter based on one-dimensional and two-dimensional feature fusion is proposed. This method directly converts one-dimensional sequence into two-dimensional data through Gramian angular field. Then gated recurrent unit (GRU) and improved deep residual networks (ResNet) are used to extract one-dimensional and two-dimensional features respectively. The method leverages the advantages of both raw sequence features and the machine learning capabilities for processing two-dimensional data. The simulation results show that the GRU-ResNet has better feature extraction ability and greatly improves the accuracy of individual emitter recognition. When the number of iterations is 50 times, the recognition accuracy is improved by more than 10 % compared with other networks. The method provides a new idea for specific emitter recognition.

Key words: specific emitter identification, gated recurrent unit(GRU), deep residual network(ResNet), feature fusion

中图分类号: