Title :
Stability of estimators for linear systems
Author :
McCullough, Claire L. ; Birdwell, J.Douglas
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Univ., Knoxville, TN, USA
Abstract :
The stability of distributed estimators in the limit as time goes to infinity is examined. A counterexample is given to show that standard stability requirements on the global system and the local filters are not sufficient to guarantee that covariance of the error between the actual state and the estimate remains finite in the limit. Sufficient conditions for uniformly bounded error covariance are presented, and in a special case, necessary and sufficient conditions are given
Keywords :
linear systems; parameter estimation; stability; distributed estimators; linear systems; local filters; necessary and sufficient conditions; stability; sufficient conditions; uniformly bounded error covariance; Covariance matrix; Density measurement; Equations; Filters; H infinity control; Linear systems; Random variables; Stability; State estimation; Sufficient conditions;
Conference_Titel :
Southeastcon '88., IEEE Conference Proceedings
Conference_Location :
Knoxville, TN
DOI :
10.1109/SECON.1988.194895
