一种新的MPSK信号特征提取方法  

Novel method for extracting features of MPSK signal

作　　者：张西托[1] 周建平[1] 张华睿[1] 刘平[1] 

机构地区：[1]海军潜艇学院航海观通系,山东青岛266044

出　　处：《现代电子技术》2012年第23期78-80,83,共4页Modern Electronics Technique

摘　　要：针对MPSK信号的识别问题,提出了一种依据基带信号相位空间聚类提取码元序列的方法。基带信号相位空间聚类是宏观特征,对参数估计精度要求不高,受噪声影响较小,与传统依据参数估计提取码元序列的方法相比,不需要进行码元速率估计和码元对准,是一种简单有效的码元序列提取方法。仿真实验证明了该方法的有效性。Aimed at the recognition of MPSK signal, a novel algorithm is proposed for extracting symbol series based on phase clustering of baseband signal. The phase clustering of baseband signal is a macrofeature, which does not require high estimation accuracy of the parameters, and is influenced less by noise. Compared with traditional method for extracting sym- bol series using parameterts estimation, the presented method is simple and effective, which has no need of symbol rate esti- mation and symbol alignment. The simulation results prove the effectiveness of the method.

关 键 词：MPSK信号 特征提取 码元序列 相位聚类 

分 类 号：TN911.6[电子电信—通信与信息系统]