Title :
State observers for discrete-time linear systems with unknown inputs
Author :
Valcher, Maria Elena
Author_Institution :
Fac. of Eng., Lecce Univ., Italy
fDate :
2/1/1999 12:00:00 AM
Abstract :
In the paper the problem of designing a full-order state observer for a general discrete-time linear system with unknown inputs is analyzed. Necessary and sufficient conditions for the existence either of an asymptotic or of a deadbeat observer are provided, and a constructive design procedure, together with some examples, are discussed. Finally, the equivalence of these conditions for problem solvability with those derived in previous contributions by means of different approaches is explicitly proved
Keywords :
computability; discrete time systems; linear systems; observers; state-space methods; asymptotic observer; deadbeat observer; detectability; discrete-time systems; linear systems; necessary conditions; reconstructability; solvability; state observers; state space models; sufficient conditions; Actuators; Distributed control; Equations; Fault detection; Instruments; Linear systems; Observers; State estimation; Sufficient conditions; Vectors;
Journal_Title :
Automatic Control, IEEE Transactions on
