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On unknown-input functional observability of linear systems
conference contribution
posted on 2015-01-01, 00:00 authored by Reza Mohajerpoor, Hamid AbdiHamid Abdi, Saeid NahavandiFinding the least possible order of a stable Unknown-Input Functional Observer (UIFO) has always been a challenge in observer design theory. A practical recursive algorithm is proposed in this technical note to design a minimal multi-functional observer for multi-input multi-output (MIMO) linear time-invariant (LTI) systems with unknown-inputs. The concept of unknown-input functional observability is introduced,
and it is used as a certificate of the convergence of our algorithm. The proposed procedure looks for a number of additional auxiliary functions to be augmented to the original functions desired for reconstruction. The resulting UIFO is proper, and minimal (of minimum possible order). Moreover, the algorithm does not need the system to be unknown-input observable. A numerical example shows the procedure as well as the effectiveness of the proposed algorithm.
and it is used as a certificate of the convergence of our algorithm. The proposed procedure looks for a number of additional auxiliary functions to be augmented to the original functions desired for reconstruction. The resulting UIFO is proper, and minimal (of minimum possible order). Moreover, the algorithm does not need the system to be unknown-input observable. A numerical example shows the procedure as well as the effectiveness of the proposed algorithm.
History
Event
American Control Conference (2015 : Chicago, Illinois)Pagination
3534 - 3539Publisher
IEEELocation
Chicago, IllinoisPlace of publication
Piscataway, N.J.Start date
2015-07-01End date
2015-07-03Language
engPublication classification
E Conference publication; E1 Full written paper - refereedCopyright notice
2015, IEEETitle of proceedings
ACC 2015 : PRoceedings of the 2015 American Control ConferenceUsage metrics
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