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Automatic Modulation Classification Using ResNeXt-GRU With Deep Feature Fusion
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DOI：10.1109/TIM.2023.3290301.png)
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摘要
En 中文
With the integrated design and application of radar, communication, and electronic reconnaissance, automatic modulation classification (AMC) is becoming increasingly significant in various applications, such as spectrum monitoring and cognitive radio, and has entered a stage of remarkable development. Recently, the AMC technology is suffering from complex and diverse signal types, low signal-to-noise ratio (SNR), poor algorithm robustness, and so forth. To cope with these flaws, this article presents a modulation classification scheme based on deep feature fusion. In this work, the ResNeXt network is utilized to extract the distinctive semantic feature of the signal, and the gated recurrent unit (GRU) is employed to extract the time-series representation characteristic. Considering the complementarity between different features, a feature fusion model using discriminant correlation analysis (DCA) is proposed to fuse the output responses of the ResNeXt and GRU. The simulation results reveal that the proposed method achieves superior performance, which is conducive to promoting the application of feature fusion in the AMC.
Keyword:
~Automatic modulation classification (AMC)
deep learning (DL)
discriminant correlation analysis (DCA)
feature extraction
feature fusion
期刊
IF:
5.9
论文数:
2.0W
被引数:
5.8W
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