DocumentCode
822777
Title
Unidentifiability versus "actual" observability
Author
Milanese, Mario
Author_Institution
Politecnico di Torino, Torino, Italy
Volume
21
Issue
6
fYear
1976
fDate
12/1/1976 12:00:00 AM
Firstpage
876
Lastpage
877
Abstract
It is shown that the observability of a linear state equation, only input-output accessible, does not imply that all the states can be actually evaluated. Such possibility, depends on the identifiability properties of the equations. A necessary, and sufficient condition for observability of the states, when the equations are unidentifiable, is derived. It is also shown that in such situations the "actual" observability\´ may depend also on the input matrix.
Keywords
Linear systems, time-invariant continuous-time; Observability; Parameter identification; Equations; Noise measurement; Observability; Sufficient conditions;
fLanguage
English
Journal_Title
Automatic Control, IEEE Transactions on
Publisher
ieee
ISSN
0018-9286
Type
jour
DOI
10.1109/TAC.1976.1101371
Filename
1101371
Link To Document