Title :
A state observer for LTI systems with delayed outputs: Time-varying delay
Author :
Subbarao, Kamesh ; Muralidhar, Praveen C.
Author_Institution :
Dept. of Mech. & Aerosp. Eng., Univ. of Texas at Arlington, Arlington, TX
Abstract :
This paper analyzes the stability properties of a state observer estimating the system states from delayed measurements for a linear time invariant plant. The delay is assumed to be a known piecewise constant function of time. The observer construction is a two step procedure and has a "chain-like" structure, consisting of two cascaded dynamical systems. The manifestation of the time-varying delayed output on the observer stability is analyzed at both the "zeroth" and the "first" links in the chain of observers.
Keywords :
cascade systems; delay systems; invariance; linear systems; observers; piecewise constant techniques; stability; time-varying systems; cascaded dynamical systems; delayed measurements; linear time invariant plant; piecewise constant function; stability properties; state observer; system state estimation; time-varying delay; Aerospace control; Control systems; Delay effects; Delay estimation; Delay systems; Linear systems; Observers; Stability analysis; State estimation; Time varying systems;
Conference_Titel :
American Control Conference, 2008
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-2078-0
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2008.4586957
