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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.
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页码:1093 / 1106
页数:14
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