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Disturbance decoupled observers for systems with unknown inputs

Trinh, H., Trung, Dinh Tran and Fernando, T. 2008, Disturbance decoupled observers for systems with unknown inputs, IEEE transactions on automatic control, vol. 53, no. 10, pp. 2397-2402.

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Title Disturbance decoupled observers for systems with unknown inputs
Author(s) Trinh, H.
Trung, Dinh Tran
Fernando, T.
Journal name IEEE transactions on automatic control
Volume number 53
Issue number 10
Start page 2397
End page 2402
Publisher IEEE
Place of publication Piscataway, N. J.
Publication date 2008-11-07
ISSN 0018-9286
1558-2523
Keyword(s) disturbance decoupled observers
Sylvester matrix equation
linear functional observers
unknown inputs
Summary This note deals with the design of reduced-order disturbance decoupled scalar functional observers for linear systems with unknown inputs. Based on a parametric approach, existence conditions are derived and a design procedure for finding reduced-order scalar functional observers is given. The derived existence conditions are relaxed and the procedure can find first-order disturbance decoupled scalar functional observers for some cases where the number of unknown inputs is more than the number of outputs. Also, the observer matching condition, which is the necessary requirement for the design of state observers for linear systems with unknown inputs, is not required. Numerical examples are given to illustrate the attractiveness of the proposed design method.
Language eng
Field of Research 090602 Control Systems
Socio Economic Objective 861604 Integrated Systems
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2008, IEEE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017834

Document type: Journal Article
Collections: School of Engineering and Information Technology
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