系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (6): 2096-2104.doi: 10.12305/j.issn.1001-506X.2026.06.30

• 通信与网络 • 上一篇    下一篇

基于随机共振和多尺度特征融合调制识别方法

王鹏昊1,2(), 何迪1,*, 尤明懿2, 郭细平2   

  1. 1. 上海交通大学上海市北斗导航与位置服务重点实验室,上海 200240
    2. 中国电子科技集团公司第三十六研究所,浙江 嘉兴 314033
  • 收稿日期:2025-04-02 修回日期:2025-06-04 出版日期:2026-06-25 发布日期:2025-12-10
  • 通讯作者: 何迪 E-mail:wangpenghao@sjtu.edu.cn
  • 作者简介:王鹏昊(2000—),男,硕士研究生,主要研究方向为微弱通信信号识别与定位
    尤明懿(1984—),男,研究员,博士,主要研究方向为通信信息安全控制
    郭细平(1972—),男,研究员,主要研究方向为电磁感知与应用
  • 基金资助:
    国家自然科学基金重点项目(62231010);国家自然科学基金面上项目(61971278)资助课题

Modulation recognition method based on stochastic resonance and multi-scale features fusion

Penghao WANG1,2(), Di HE1,*, Mingyi YOU2, Xiping GUO2   

  1. 1. Shanghai Key Laboratory of Navigation and Location-based Services,Shanghai Jiao Tong University,Shanghai 200240,China
    2. No.36 Research Institute of China Electronics Technology Group Corporation,Jiaxing 314033,China
  • Received:2025-04-02 Revised:2025-06-04 Online:2026-06-25 Published:2025-12-10
  • Contact: Di HE E-mail:wangpenghao@sjtu.edu.cn

摘要:

自动调制识别(automatic modulation recognition,AMR)在电子对抗、频谱监测等复杂电磁环境下的非协作通信中至关重要,但现有方法在低信噪比(signal-to-noise ratio, SNR)时易受噪声干扰且特征提取能力不足。为此,提出一种基于随机共振(stochastic resonance,SR)与双输入SR网络(dual-input SR network,DualSR-Net)的AMR方法,通过联合原始同相正交(inphase quadrature, IQ)数据和SR增强的IQ数据,利用噪声能量转换与多尺度特征融合提升识别鲁棒性。实验表明,该模型在全SNR范围的分类准确率较现有方法提升3%~6.5%,尤其在低SNR(?8~0 dB)场景下提升5.7%~9.6%,显著优于主流模型。双通道架构融合时频增强与深度特征学习,为恶劣环境下可靠调制分类提供新思路。

关键词: 自动调制识别, 随机共振, 特征融合

Abstract:

Automatic modulation recognition (AMR) is critical for non-cooperative communication in complex electromagnetic environments such as electronic warfare and spectrum monitoring. However, existing methods suffer from noise interference and insufficient feature extraction capabilities under low signal-to-noise ratio (SNR) conditions. To address this, an AMR method integrating stochastic resonance (SR) and a dual-input SR network (DualSR-Net)is proposed. By jointly leveraging raw inphase quadrature(IQ) data and SR-enhanced IQ data, noise energy conversion and multi-scale feature fusion are used to enhance recognition robustness. Experiment demonstrates classification accuracy improvements of 3%–6.5% across the full SNR range compared to existing methods, especially in low SNR (?8?0 dB) scenarios, it is improved by 5.7%–9.6%, which is significantly better than the mainstream model. The dual-channel architecture combines time-frequency enhancement with deep feature learning, offering a new solution for reliable modulation classification in harsh environments.

Key words: automatic modulation recognition (AMR), stochastic resonance, feature fusion

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