Title :
On fault-tolerant observers
Author :
Levine, J. ; Marino, R.
Author_Institution :
Centre d´´Autom. et Inf., Ecole Nat. Superieure des Mines de Paris, Fontainebleu, France
fDate :
5/1/1990 12:00:00 AM
Abstract :
The problem of designing asymptotic observers for multioutput systems with one unreliable output measurement is addressed. It is shown that observers designed on the basis of observability indexes are not fault tolerant, and an observer for linear systems which tolerates failures in one a priori known output is given. The results are extended to nonlinear systems with no inputs: it is pointed out that the proposed design procedure may enlarge the class of nonlinear systems for which a nonlinear observer can be obtained
Keywords :
multivariable systems; nonlinear systems; state estimation; design; fault-tolerant observers; linear systems; multioutput systems; nonlinear systems; observability indexes; Fault tolerance; Fault tolerant systems; Linear systems; Loss measurement; Nonlinear dynamical systems; Nonlinear systems; Observability; Stability; Sufficient conditions;
Journal_Title :
Automatic Control, IEEE Transactions on
