基于GNU Radio高阶累计量的MPSK信号分类器设计  

Design of MPSK Signal Classifier based on GNU Radio High-Order Cumulate

作　　者：李晓光 潘克刚 齐帅 潘晨 LI Xiao-guang;PAN Ke-gang;QI Shuai;PAN Chen(School of Communication Engineering,Army Engineering University of PLA,Nanjing Jiangsu 210007,China)

机构地区：[1]中国人民解放军陆军工程大学通信工程学院,江苏南京210007

出　　处：《通信技术》2018年第8期2001-2007,共7页Communications Technology

摘　　要：提出了一种基于高阶统计信号处理的2PSK、4PSK、8PSK和16PSK等MPSK信号自动分类器。通过计算复数包络信号的八阶累积量,确定MPSK信号新定义的特征参数,而这些特征值与接收信号平均功率和相位偏差无关。此外,设计分类器来识别特定的MPSK信号。Matlab仿真验证表明,在SNR>5 d B的情况下,分类器可以实现正确的分类。为了将该分类器方法应用到工程中,设计了基于GNU Radio软件无线电平台的分类器模块,并通过收发系统验证了其可以正确地分类MPSK信号。A MPSK signal automatic classifier based on such high-order statistical signal processing as 2PSK, 4PSK, 8PSK and 16PSK is proposed. The newly-defined characteristic parameters of MPSK signal are determined by calculating the eighth-order cumulate of complex envelope signal. These eigenvalues are independent of the average power and phase deviation of the received signal. In addition, a classifier is designed to identify a particular MPSK signal. In order to apply the classifier method to the engineering, a classifier module based on the GNU Radio software radio platform is designed, and the experiment via transceiver system indicates that this classifier module could correctly classify MPSK signals.

关 键 词：八阶累积量 MPSK调制分类器 特征参数 GNU Radio和USRP软件无线电 

分 类 号：TN919.34[电子电信—通信与信息系统]