单信道时频重叠MPSK信号的调制识别方法  

Modulation Recognition Method for Single-Channel Time-Frequency Overlapped MPSK Signals

作　　者：李旷代[1] 郭黎利 石荣 吴丹[1] 

机构地区：[1]哈尔滨工程大学,哈尔滨150001 [2]信息控制国家重点实验室,成都610036

出　　处：《火力与指挥控制》2010年第2期150-153,共4页Fire Control & Command Control

基　　金：国防预研基金资助项目(9140C10020407)

摘　　要：提出一种基于高阶循环累积量的调制识别算法,用于解决单信道两个时频重叠M PSK信号的调制识别问题。对接收到的重叠信号进行预处理,计算其四阶循环累积量,提取分类特征参数,采用最小误差准则算法实现时频重叠双信号的自动分类。理论分析和仿真试验结果均证明了算法的正确性和有效性。To solve the problems in modulation recognition of two time-frequency overlapped MPSK signals in the single-channel, An algorithm based on cyclic cumulants used modulation recognition is presented. Through computing the fourth-orders cyclic eumulants of pretreated overlapped signals, the feature parameter for classification was extracted, then use the minimum-error criterion to classify the two time-frequency overlapped signals automaticly. Theoretical analysis and experiment results both verify that the algorithm is correct and efficient.

关 键 词：时频重叠 循环累积量 调制识别 MPSK信号 

分 类 号：TN911[电子电信—通信与信息系统]