Estimation of systems with statistically-constrained inputs

Yan Liang, Lei Zhang, Donghua Zhou, Quan Pan

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7 引用 (Scopus)

摘要

This paper discusses the estimation of a class of discrete-time linear stochastic systems with statistically-constrained unknown inputs (UI), which can represent an arbitrary combination of a class of un-modeled dynamics, random UI with unknown covariance matrix and deterministic UI. In filter design, an upper bound filter is explored to compute, recursively and adaptively, the upper bounds of covariance matrices of the state prediction error, innovation and state estimate error. Furthermore, the minimum upper bound filter (MUBF) is obtained via online scalar parameter convex optimization in pursuit of the minimum upper bounds. Two examples, a system with multiple piecewise UIs and a continuous stirred tank reactor (CSTR), are used to illustrate the proposed MUBF scheme and verify its performance.

源语言英语
页(从-至)2644-2656
页数13
期刊Applied Mathematics and Computation
217
6
DOI
出版状态已出版 - 15 11月 2010

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