基于ConvNeXt网络的半监督特定发射器识别方法

IF 0.8 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Dian Lv, Zhiyong Yu, Junjie Cao, Jiawei Xie
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引用次数: 0

摘要

为了解决通信源识别中未知发射器识别的难题,本研究提出了一种半监督识别框架。构造了多时频特征融合通道,设计了一种注意力增强的ConvNeXt结构对融合特征进行处理。通过冻结从预训练的闭集网络中提取的深度特征,使用K-means算法对未知发射源进行分类。冻结闭集模型在低信噪比条件下达到90%的发射器识别精度,性能比传统方法提高10%至30%。在3类和4类未知发射器数据集上的实验验证表明,该框架的识别率提高了50%,证明了该框架在开放集发射器分类中的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Semi-Supervised Specific Emitter Identification Method Based on ConvNeXt Network

Semi-Supervised Specific Emitter Identification Method Based on ConvNeXt Network

Semi-Supervised Specific Emitter Identification Method Based on ConvNeXt Network

Semi-Supervised Specific Emitter Identification Method Based on ConvNeXt Network

Semi-Supervised Specific Emitter Identification Method Based on ConvNeXt Network

To address the challenge of unknown emitter identification in communication source recognition, this study proposes a semi-supervised recognition framework. A multi-temporal-frequency feature fusion channel is constructed, and an attention-augmented ConvNeXt architecture is designed to process fused features. By freezing the deep features extracted from the pretrained closed-set network, unknown emitters are classified using the K-means algorithm. The frozen closed-set model achieves 90% emitter identification accuracy under low SNR conditions, with performance improvements ranging from 10% to 30% over conventional methods. Experimental validation on 3-class and 4-class unknown emitter datasets demonstrates up to a 50% recognition rate enhancement, substantiating the framework's efficacy in open-set emitter classification.

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来源期刊
Electronics Letters
Electronics Letters 工程技术-工程:电子与电气
CiteScore
2.70
自引率
0.00%
发文量
268
审稿时长
3.6 months
期刊介绍: Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews. Scope As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below. Antennas and Propagation Biomedical and Bioinspired Technologies, Signal Processing and Applications Control Engineering Electromagnetism: Theory, Materials and Devices Electronic Circuits and Systems Image, Video and Vision Processing and Applications Information, Computing and Communications Instrumentation and Measurement Microwave Technology Optical Communications Photonics and Opto-Electronics Power Electronics, Energy and Sustainability Radar, Sonar and Navigation Semiconductor Technology Signal Processing MIMO
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