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dc.contributor.author陈友淦
dc.contributor.author许肖梅
dc.date.accessioned2017-11-14T01:23:28Z
dc.date.available2017-11-14T01:23:28Z
dc.date.issued2008-06-05
dc.identifier.citation中国新通信,2008,(11):49-52
dc.identifier.issn1673-4866
dc.identifier.otherTXWL200811011
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/140988
dc.description.abstract给出了一种服从AR过程的随机信号,利用维纳滤波器通过观测方程来测量该信号,研究了维纳滤波器的阶数、随机信号采样点、噪声方差及滤波的均方误差之间的联系。仿真结果表明:在噪声方差一定的条件下,阶数与采样点的一半较接近时,阶数越大,均方误差越小,其总体均方误差小于阶数与采样点差距较大时的均方误差,但是滤波器可能存在畸变现象;阶数一定的条件下,噪声方差较小时,均方误差性能对噪声方差比较敏感,当噪声方差超过一定值时,均方误差稳定趋于某个区间值。
dc.description.abstractAn autoregressive(AR) model of random signal is given to be measured by the observation equation of Wiener filters.This paper discusses the relationships among the order numbers of Wiener filter,the sampling numbers of random signal,the noise covariance and the mean square error of the Wiener filter algorithm in detail.The simulating results show that the increase of order numbers can not ensure to reduce the mean square error with improper choice of the parameters,and noise covariance is more sensitive to mean square error of the Wiener filter algorithm with low noise covariance.Also mean square error will converge to a stationary scope as noise covariance goes to a setting value.
dc.description.sponsorship国家自然科学基金(40776022);; 国家863计划专项经费(2006AA09Z108)资助
dc.language.isozh_CN
dc.subject维纳滤波器
dc.subject阶数
dc.subject采样点
dc.subject均方误差
dc.subjectWiener filter,filter order number,sampling number,mean square error
dc.title基于MATLAB的维纳滤波器仿真研究
dc.title.alternativeSimulation Reach of Wiener Filter Based on MATLAB
dc.typeArticle


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