arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2002.12037eess.SP
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基于双通道LSTM模型的开集调制识别

Open Set Modulation Recognition Based on Dual-Channel LSTM Model

Youwei Guo, Hongyu Jiang, Jing Wu, Jie Zhou

摘要:

深度神经网络在计算机视觉、语音识别和许多其他领域取得了巨大成功。本文研究了递归神经网络特别是长短期记忆(LSTM)在开集通信信号调制识别中的潜力。时域采样信号首先被转换为两个归一化矩阵,这两个归一化矩阵将被馈送到为开集调制识别量身定制的四层双通道LSTM网络中。通过两个级联的双通道LSTM层,所设计的网络可以从原始数据中自动学习序列相关特征。在中心损失和威布尔分布的情况下,该算法可以识别部分开集调制。在公共RadioML数据集上的实验表明,该模型可以有效地分类不同的模拟和数字调制,同时可以识别部分开集调制。对数据集的定量分析表明,该方法可以达到90.2%的平均准确率在不同的信噪比范围从0 dB到18 dB的分类所考虑的11类,而开集实验的准确率显着提高了14.2%。

英文摘要:

Deep neural networks have achieved great success in computer vision, speech recognition and many other areas. The potential of recurrent neural networks especially the Long Short-Term Memory (LSTM) for open set communication signal modulation recognition is investigated in this letter. Time-domain sampled signals are first converted to two normalized matrices which will be fed into a four layer Dual-Channel LSTM network tailored for open set modulation recognition. With two cascaded Dual-Channel LSTM layers, the designed network can automatically learn sequence-correlated features from the raw data. With center loss and weibull distribution, proposed algorithm can recognize partial open set modulations. Experiments on the public RadioML dataset indicates that different analog and digital modulations can be effectively classified by the proposed model, while partial open set modulations can be recognized. Quantitative analysis on the dataset shows that the proposed method can achieve an average accuracy of 90.2% at varying SNR ranging from 0dB to 18dB in classifying the considered 11 classes, while accuracy of open set experiment dramatically improved by 14.2%.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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