Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain Observations

This paper is concerned with the finite-time H∞ filtering problem for linear continuous time-varying systems with uncertain observations and ℒ2-norm bounded noise. The design of finite-time H∞ filter is equivalent to the problem that a certain indefinite quadratic form has a minimum and the filter i...

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Main Authors: Huihong Zhao, Chenghui Zhang
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/710904
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author Huihong Zhao
Chenghui Zhang
author_facet Huihong Zhao
Chenghui Zhang
author_sort Huihong Zhao
collection DOAJ
description This paper is concerned with the finite-time H∞ filtering problem for linear continuous time-varying systems with uncertain observations and ℒ2-norm bounded noise. The design of finite-time H∞ filter is equivalent to the problem that a certain indefinite quadratic form has a minimum and the filter is such that the minimum is positive. The quadratic form is related to a Krein state-space model according to the Krein space linear estimation theory. By using the projection theory in Krein space, the finite-time H∞ filtering problem is solved. A numerical example is given to illustrate the performance of the H∞ filter.
format Article
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institution Kabale University
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publishDate 2012-01-01
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series Journal of Applied Mathematics
spelling doaj-art-1448268c7c4242e7ba8ce3d8e08d7ece2025-08-20T03:54:33ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/710904710904Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain ObservationsHuihong Zhao0Chenghui Zhang1Department of Electromechanical Engineering, Dezhou University, No. 566 University Road West, Dezhou 253023, ChinaSchool of Control Science and Engineering, Shandong University, 17923 Jingshi Road, Jinan 250061, ChinaThis paper is concerned with the finite-time H∞ filtering problem for linear continuous time-varying systems with uncertain observations and ℒ2-norm bounded noise. The design of finite-time H∞ filter is equivalent to the problem that a certain indefinite quadratic form has a minimum and the filter is such that the minimum is positive. The quadratic form is related to a Krein state-space model according to the Krein space linear estimation theory. By using the projection theory in Krein space, the finite-time H∞ filtering problem is solved. A numerical example is given to illustrate the performance of the H∞ filter.http://dx.doi.org/10.1155/2012/710904
spellingShingle Huihong Zhao
Chenghui Zhang
Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain Observations
Journal of Applied Mathematics
title Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain Observations
title_full Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain Observations
title_fullStr Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain Observations
title_full_unstemmed Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain Observations
title_short Finite-Time H∞ Filtering for Linear Continuous Time-Varying Systems with Uncertain Observations
title_sort finite time h∞ filtering for linear continuous time varying systems with uncertain observations
url http://dx.doi.org/10.1155/2012/710904
work_keys_str_mv AT huihongzhao finitetimehfilteringforlinearcontinuoustimevaryingsystemswithuncertainobservations
AT chenghuizhang finitetimehfilteringforlinearcontinuoustimevaryingsystemswithuncertainobservations