适用于LPTV系统的周期自适应滤波器的研究  

THE STUDY OF PERIOD ADAPTIVE FILTER FOR LPTV SYSTEM

作　　者：陈喆[1] 王宏禹[1] 邱天爽[1] 

机构地区：[1]大连理工大学电子与信息工程学院,大连116023

出　　处：《电子与信息学报》2003年第7期884-891,共8页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60172072);辽宁省科学技术基金(2001101057)

摘　　要：该文讨论了平稳(或周期平稳)随机信号通过线性时不变(或周期时变)系统后,输出信号的周期平稳性质,给出了两种可用于线性周期时变(LPTV)系统的周期自适应滤波器算法和一种系统周期的自适应估计算法;仿真结果表明了上述算法的有效性。In this paper, the cyclostationary property of output signal of the system is discussed, when a stationary(or cyclostationary) signal passes a linear period time variant(or time invariant) system. Two kinds of time variant adaptive filter are presented, which can be used in linear period time variant system. At same time, an algorithm for period of LPTV system is also presented. Simulation results indicate the efficiency of these algorithms.

关 键 词：周期时变系统 周期平稳 自适应滤波器 随机信号处理 

分 类 号：TN911.7[电子电信—通信与信息系统]