DocumentCode
823860
Title
A counterexample to "Observability of linear systems with time-variable delays"
Author
Olbrot, Andrzw W.
Author_Institution
Politechnika Warszawska, Warsaw, Poland
Volume
22
Issue
2
fYear
1977
fDate
4/1/1977 12:00:00 AM
Firstpage
281
Lastpage
283
Abstract
It is proved on a counterexample that the main results of the above paper are incorrect. It is also shown that the definition of observability in the above paper is not adequate to real problems. Two more reasonable definitions are presented. Results corresponding to one of them are described and a new simplified sufficient condition for observability is proven.
Keywords
Delay systems; Equations; Kernel; Linear systems; Observability; Observers; Redundancy; State estimation; Sufficient conditions;
fLanguage
English
Journal_Title
Automatic Control, IEEE Transactions on
Publisher
ieee
ISSN
0018-9286
Type
jour
DOI
10.1109/TAC.1977.1101484
Filename
1101484
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