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Kalman Filters for Non-uniformly Sampled Multirate Systems

Authors:Shah Sirish L., University of Alberta, Canada
Li Weihua, University of Alberta, Canada
Xiao D., Tsinghua University, China
Topic:6.1 Chemical Process Control
Session:Modelling, Estimation and Fault Detection for Process Control
Keywords: Kalman filters, non-uniformly sampled multirate systems, one-step prediction, filtering, fault detection

Abstract

This paper proposes Kalman Fillter algorithms, including one-step prediction and filtering, for non-uniformly sampled multirate systems. The stability and convergence of the algorithms are analyzed, and their application to fault detection as well as state estimation in the framework of irregularly sampled data is investigated. Numerical examples are provided to demonstrate the applicability of the newly proposed algorithms.