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Further results on “Reduced order disturbance observer for discrete-time linear systems”

Su, Jinya and Chen, Wen-Hua (2018) 'Further results on “Reduced order disturbance observer for discrete-time linear systems”.' Automatica, 93. pp. 550-553. ISSN 0005-1098

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Reduced order Disturbance OBservers (DOB) have been proposed in Kim et al. (2010) and Kim and Rew (2013) for continuous-time and discrete-time linear systems, respectively. The existence condition of the promising algorithm has been established but is not straightforward to check. This work further improves the reduced order DOB design by formulating it as a functional observer design problem. By carefully designing the state functional matrix, a generic DOB is resulted with an easily-checked necessary and sufficient existence condition and an easily-adjusted convergence rate. It is also shown that both the reduced order DOB in Kim and Rew (2013) and the full order DOB in Chang (2006) are special cases of this new DOB.

Item Type: Article
Uncontrolled Keywords: Disturbance OBserver (DOB); Functional observer; Reduced-order observer; Unified observer
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 26 Sep 2019 14:48
Last Modified: 15 Jan 2022 01:29

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