一种轻量化的IQ路信号调制方式识别方法  

A lightweight IQ signal modulation recognition method

作　　者：曹洁 刘锦辉 宋蓓蓓[2] CAO Jie;LIU Jin-hui;SONG Bei-bei(Xi'an Tonghe Telecom Equipment Testing Co.,Ltd.,Xi’an 710061,China;School of Information Engineering,Chang’an University,Xi’an 710064,China)

机构地区：[1]西安通和电信设备检测有限公司,陕西西安710061 [2]长安大学信息工程学院,陕西西安710064

出　　处：《无线通信技术》2024年第3期18-23,共6页Wireless Communication Technology

摘　　要：为了解决传统方法在识别复杂信号调制类型时存在的计算复杂度高、模型参数过多、运算速度慢等问题,提出了一种轻量化的IQ路信号调制识别方法。该方法通过对I、Q两通道信号分别构建一维网络提取异构特征,并结合不同大小的卷积核来感知信号的多尺度特征,能够有效识别不同信号调制类型并提高识别准确度。实验结果显示,在两种公开数据集上,该方法在信噪比为-20dB至-18dB范围内的整体识别率分别达到了62.44%和64.61%,当信噪比高于0dB时,识别率超过92%。A lightweight IQ signal modulation recognition method was proposed to address the issues of high computational complexity,excessive model parameters,and slow processing speed in tradi-tional methods for identifying complex signal modulation types.This method constructs one-dimensional networks for the I and Q channels to extract heterogeneous features,and combines dif-ferent sizes of convolution kernels to perceive the multi-scale features of signals,effectively identi-fying different signal modulation types and improving recognition accuracy.Experimental results show that on two public datasets,the overall recognition rates of this method range from 62.44%to 64.61%for signal-to-noise ratios between-20dB and-18dB,and exceed 92%when the signal-to-noise ratio is above 0dB.

关 键 词：轻量化设计 IQ路信号 调制识别 优化算法 

分 类 号：TN98[电子电信—信息与通信工程]