Design of RLS fixed-lag smoother using covariance information in linear discrete stochastic systems

被引:1
|
作者
Nakamori, Seiichi [1 ]
Hermoso-Carazo, Aurora [2 ]
Linares-Perez, Josefa [2 ]
机构
[1] Kagoshima Univ, Dept Technol, Fac Educ, Kagoshima 8900065, Japan
[2] Univ Granada, Dept Estadist & Invest Operat, E-18071 Granada, Spain
关键词
Discrete stochastic systems; Recursive least-squares fixed-lag smoother; Covariance information; Wiener-Hopf equation;
D O I
10.1016/j.apm.2009.07.022
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper newly designs the recursive least-squares fixed-lag smoother using the covariance information in linear discrete-time stochastic systems. It is assumed that the signal is observed with additive white observation noise and the signal is uncorrelated with the observation noise. The fixed-lag smoother uses the covariance function of the signal in the semi-degenerate kernel form and the variance of the observation noise. The proposed fixed-lag smoother is suitable for the estimations of stationary or non-stationary stochastic signals generally. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:1093 / 1106
页数:14
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