基于二阶循环统计量的MPSK信号频偏估计算法  

Second-Order Cyclic Statistics-Based Frequency Estimation Method

作　　者：李晶[1] 朱江[1] 张尔扬[1] 沈荣骏[2] 

机构地区：[1]国防科技大学电子科学与工程学院 [2]中国人民解放军总装备部科技委,北京100080

出　　处：《信号处理》2005年第3期267-270,共4页Journal of Signal Processing

基　　金：总装备部国防预研基金支持

摘　　要：本文利用接收信号(为二阶周期平稳信号)的二阶循环平稳特性推导了一种开环频偏估计算法,此算法的特点为:(1)接收信号为MPSK调制信号;(2)频偏估计过程不需要训练序列;(3)适用于任何分布的加性平稳噪声(白噪声及有色噪声)。文章对提出算法的性能进行了分析,并运用蒙特卡洛(MonteCarlo)方法对算法的性能进行仿真。An open-loop frequency estimation algorithm is proposed based on the received signal's second-order cyclic statistics in this paper (The received signal is second-order cyclic stationary). The feature include in: (1)The received signal is MPSK modulated; (2)It does not need training data; (3)It is tolerant to additive stationary noise of any color or distribution. Performance of the developed method is derived and analyzed using Monte Carlo simulation.

关 键 词：频偏估计算法 二阶循环统计量 MPSK信号 循环平稳特性 周期平稳信号 接收信号 调制信号 训练序列 有色噪声 蒙特卡洛 白噪声 性能 仿真 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] TN911.72[自动化与计算机技术—计算机科学与技术]