基于矩方法的通信信号信噪比估计算法研究  

MoM- based SNR Estimation Algorithms for Communication Signals

作　　者：陈云峰[1] 付永明[1] 张炜[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《通信技术》2015年第1期23-26,共4页Communications Technology

摘　　要：文中研究了一类基于矩方法的通信信号信噪比估计算法。归纳总结了各种基于矩方法的信噪比估计算法,包括最早的M2M4算法、M1M2算法以及最新的基于高阶矩的方法;对文献中涉及的典型算法在统一的条件下进行了估计成功概率、均值和均方误差的对比仿真分析,同时也对各算法的复杂度进行了分析;最后在分析的基础上总结了各种基于矩方法算法的性能优劣及应用限制,为实际中使用这类简单有效的信噪比估计算法提供指导。The paper discusses SNR （signal-to-noise ratio） estimation algorithm based on MoM （method of moments） for communication signals. Various MoM-based SNR estimation algorithms, including the classic M2M4 method, M1M2 method and newly-proposed method based on higher-order moments, are summarized, the probabihty of success, mean value, EMS （ error of mean square） of the related typical algorithms are simulated and compared under unified condition, and meanwhile the complexity of various al- gorithms is also analyzed. Finally, in light of this, the advantages, disadvantages and application constraints of these algorithms are concluded, and all this could serve as a guidance for practical applications of these simple and effective SNR estimation algorithms.

关 键 词：矩方法 信噪比估计 高阶矩 

分 类 号：TN919.6[电子电信—通信与信息系统]