基于高阶累积量通信调制信号类型的综合识别  

Comprehensive Recognition of Communication Modulation Signal Style Based on High-order Cumulant

作　　者：刘建林[1] LIU Jianlin(The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050011)

机构地区：[1]中国电子科技集团第五十四研究所,石家庄050011

出　　处：《舰船电子工程》2022年第10期73-76,共4页Ship Electronic Engineering

摘　　要：数字调制信号识别是信号处理基础,论文针对这一问题利用高阶累积量的分类特征用于识别调制信号样式,首先推导计算各信号的八阶累积量,提取出一个特征参数,从而达到较少参数识别出较多调制信号样式的目的,这一特征能够显著消除高斯白噪声影响,提高低信噪比下的调制信号识别率。仿真结果显示,通过利用这个参数可以实现4PSK、8PSK、16PSK、16QAM、32QAM、64QAM等多种数字调制信号的识别。Digital modulation signal recognition is the basis of signal processing. To solve this problem,the classification feature of high-order cumulants is originally used to identify modulation signal styles. First,the eighth-order cumulants of each signal are derived and calculated,and a characteristic parameter is extracted,so as to achieve the purpose of identifying more modulation signal styles with fewer parameters. This feature can significantly eliminate the influence of Gaussian white noise,the recognition rate of modulated signal under low signal-to-noise ratio is improved. The simulation results show that by using this parameter,the recognition of 4PSK,8PSK,16PSK,16QAM,32QAM,64QAM and other digital modulation signals can be realized.

关 键 词：调制识别 高阶累积量 特征参数 MPSK MQAM 

分 类 号：TN911[电子电信—通信与信息系统]