A Modulation Recognition Method Based on Lightweight Neural Network

LI Xiao-wei; PIAO Chun-hui; YANG Xing-yu

doi:10.3969/j.issn.2096-6091.2022.24.002

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A Modulation Recognition Method Based on Lightweight Neural Network

RESEARCH PAPER | 更新时间：2023-08-03

- A Modulation Recognition Method Based on Lightweight Neural Network
- New Generation of Information Technology Vol. 5, Issue 24, Pages: 5-11(2022)
- 作者机构：
  
  1.石家庄铁道大学信息科学与技术学院，河北石家庄 050043
  2.河北省电磁环境效应与信息处理重点实验室，河北石家庄 050043
- 作者简介：
- 基金信息：
  
  Hebei Province Key R&D Plan Project(21355902D)
- DOI：10.3969/j.issn.2096-6091.2022.24.002
  CLC：
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李晓威, 朴春慧, 杨兴雨. 一种基于轻量级神经网络的调制识别方法[J]. 新一代信息技术, 2022, 5(24): 05-11

LI Xiao-wei, PIAO Chun-hui, YANG Xing-yu. A Modulation Recognition Method Based on Lightweight Neural Network[J]. New Generation of Information Technology, 2022, 5(24): 05-11
李晓威, 朴春慧, 杨兴雨. 一种基于轻量级神经网络的调制识别方法[J]. 新一代信息技术, 2022, 5(24): 05-11 DOI： 10.3969/j.issn.2096-6091.2022.24.002.

LI Xiao-wei, PIAO Chun-hui, YANG Xing-yu. A Modulation Recognition Method Based on Lightweight Neural Network[J]. New Generation of Information Technology, 2022, 5(24): 05-11 DOI： 10.3969/j.issn.2096-6091.2022.24.002.

摘要

针对目前用于信号调制方式识别的深度学习模型参数量和计算量较大的问题，提出了一种称为TBCLDNN-ECA的轻量级神经网络模型。该模型首先使用两个Bottleneck结构CNN分支并行提取信号的不同特征，两分支合并后使用注意力机制和BiLSTM，进一步提取信号的序列特征。在数据集RadioML2016.10a上进行了仿真实验，结果表明提出的模型在信噪比0~18 dB时平均识别准确率达到了92.1%，在信噪比18 dB时达到93.53%，识别准确率优于目前流行的调制识别模型，同时模型参数量和计算量均有了一定幅度的降低。因此该模型在不损失识别准确率的情况下，具有模型参数量和计算量少的优势。

Abstract

In order to solve the problem that the deep learning model used for signal modulation recognition has a large number of parameters and computation, a lightweight neural network model called TBCLDNN-ECA (Two-Stream Bottleneck Convolution Long-Short Term Memory Fully Connected Deep Neural Network with Efficient Channel Attention Module) is proposed. The model first uses two Bottleneck CNN (Convolutional Neural Networks) branches to extract different features of the signal in parallel. After the two branches are merged, attention mechanism and BiLSTM (Bi-directional Long Short-Term Memory) are used to further extract the sequence features of the signal. Simulation experiments are conducted on the dataset RadioML2016.10a. The results show that the average recognition accuracy of the proposed model reaches 92.1% at the signal to noise ratio of 0~18 dB, and 93.53% at the signal to noise ratio of 18 dB. The recognition accuracy is better than the current popular modulation recognition model. At the same time, the model parameters and calculation amount have been reduced to a certain extent. Therefore, this model has the advantage of less model parameters and computation without loss of identification accuracy.

关键词

调制识别轻量级神经网络瓶颈型结构

Keywords

modulation recognitionlightweight neural networkbottleneck structure

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