Robust automatic modulation classification under noise mismatch

EURASIP Journal on Advances in Signal Processing

Research

Lei Yang¹  Lan Guo²  Rui Gao²  Yang Cong² 

[1] Creatcomm Technology Co., Ltd., Suzhou, China;Department of Information Engineering, Yangzhou University, Yangzhou, China;

关键词: Automatic modulation classification;    Noise mismatch;    Deep learning;    Constellation;    KD-GSENet;   

DOI  :  10.1186/s13634-023-01036-9

 received in 2022-12-09, accepted in 2023-06-16,  发布年份 2023

来源: Springer

【 摘 要 】

Automatic modulation classification plays a critical role in the intelligent reception of unknown wireless signals. In practice, the dynamic wireless environment brings a great challenge, and the actual test model is inconsistent with the training model. Therefore, aiming at the problem of noise mismatch, this paper proposes a new modulation classification method based on KD-GoogLeNet and Squeeze-Excitation (KD-GSENet). Using the k-dimensional tree, the complex wireless signals are converted into color images rather than normal constellations, which can enhance the classification features. Considering the attention block has the inherent advantage of assigning more weights to important features, this paper further uses it to improve the GoogLeNet. Finally, extensive experiments are presented including Gaussian noise, non-Gaussian noise, and the scenarios of noise mismatch. Numerical results verify the superior classification performance of the proposed KD-GSENet under different scenarios.

【 授权许可】

CC BY   
© The Author(s) 2023

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