Abstract
The limiting (or steady-state) Kalman filter provides a very efficient method for estimating the state vector in a time-invariant linear system in real-time. However, if the state vector is of very high dimension n, and only a few components are of interest, this filter gives an abundance of useless information, an elimination of which should improve the efficiency of the filtering process. A decoupling method is introduced in this chapter for this purpose. It allows us to decompose an n-dimensional limiting Kalman filtering equation into n independent one-dimensional recursive for mulas so that we may drop the ones that are of little interest.
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© 1987 Springer-Verlag Berlin Heidelberg
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Chui, C.K., Chen, G. (1987). Decoupling of Filtering Equations. In: Kalman Filtering with Real-Time Applications. Springer Series in Information Sciences, vol 17. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-02508-6_9
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DOI: https://doi.org/10.1007/978-3-662-02508-6_9
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-02510-9
Online ISBN: 978-3-662-02508-6
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