乘性和加性噪声中复谐波恢复的乘积型循环统计量方法  

Product Cyclic Statistics based Approach to Harmonic Retrieval in Multiplicative and Additive Stationary Noise

作　　者：高勋章[1] 黎湘[1] 庄钊文[1] 

机构地区：[1]国防科技大学ATR国防科技重点实验室,湖南长沙410073

出　　处：《信号处理》2005年第5期551-554,共4页Journal of Signal Processing

摘　　要：本文提出了乘积型循环统计量的概念,利用这一概念讨论了乘性和加性平稳噪声条件下的谐波恢复问题。首先从理论上证明了循环均值的样本估计误差服从零均值渐近正态分布,提出采用乘积型循环均值来抑制噪声,并给出了基于乘积型循环统计量的谐波估计的具体方法,仿真实验验证了该算法的有效性。The harmonic retrieval in multiplicative and additive noise is discussed in this paper after a concept of product cyclic statistics being introduced. Firstly, the asymptotic normality of estimated error of cyclic mean is proved theoretically, Then an approach based on product cyclic statistics and clean algorithm is proposed. Finally, simulation results validate the new method.

关 键 词：谐波恢复 乘积型循环统计量 乘性噪声 循环统计量 加性噪声 乘积型 乘性 渐近正态分布 估计误差 零均值 

分 类 号：TN911.7[电子电信—通信与信息系统] TN912.34[电子电信—信息与通信工程]