Title
An Interval Kalman Filter Enhanced By Lowering The Covariance Matrix Upper Bound
Abstract
This paper proposes a variance upper bound based interval Kalman filter that enhances the interval Kalman filter based on the same principle proposed by Tran et al. (2017) for uncertain discrete time linear models. The systems under consideration are subject to bounded parameter uncertainties not only in the state and observation matrices, but also in the covariance matrices of the Gaussian noises. By using the spectral decomposition of a symmetric matrix and by optimizing the gain matrix of the proposed filter, we lower the minimal upper bound on the state estimation error covariance for all admissible uncertainties. This paper contributes with an improved algorithm that provides a less conservative error covariance upper bound than the approach proposed by Tran et al. (2017). The state estimates are determined using interval analysis in order to enclose the set of all possible solutions of the classical Kalman filter consistent with the uncertainties.
Year
DOI
Venue
2021
10.34768/amcs-2021-0018
INTERNATIONAL JOURNAL OF APPLIED MATHEMATICS AND COMPUTER SCIENCE
Keywords
DocType
Volume
uncertain linear systems, Kalman filter, interval analysis, estimation, covariance matrix
Journal
31
Issue
ISSN
Citations 
2
1641-876X
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Tuan Anh Tran100.34
Carine Jauberthie200.34
L. Trav&#233/-massuy&#232/s339454.06
Quoc Hung Lu400.34