DocumentCode :
854685
Title :
Remarks on persistency of excitation for nonminimal models of systems having purely deterministic disturbances
Author :
Janecki, Daiuusz
Author_Institution :
Politechnika Warszawska, Warszawa, Poland
Volume :
32
Issue :
12
fYear :
1987
fDate :
12/1/1987 12:00:00 AM
Firstpage :
1123
Lastpage :
1125
Abstract :
A persistency of excitation result for nonminimal models of systems having purely deterministic disturbances has been given recently in [1]. In this note we give a direct and simple proof for the case of bounded signals of the result of [1] and show, via a counterexample, that an assumption on system signals boundedness which does not appear in [1] is necessary when arbitrary unbounded signals are allowable. Finally, we give a proper persistency of excitation result which does not require signal boundedness for the case when the system input consists of a bounded external signal and of a constant coefficient feedback component.
Keywords :
Adaptive control, linear systems; Adaptive control; Automatic control; Control systems; Error correction; MIMO; Polynomials; Programmable control; Steady-state; Upper bound; Vehicle dynamics;
fLanguage :
English
Journal_Title :
Automatic Control, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9286
Type :
jour
DOI :
10.1109/TAC.1987.1104519
Filename :
1104519
Link To Document :
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