Title :
Discrete-time singular observers: H2/H∞ optimality and unknown inputs
Author :
Takahashi, Ricardo H C ; Palhares, Reinaldo M. ; Peres, Pedro L D
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. de Minas Gerais, Belo Horizonte, Brazil
Abstract :
Presents a family of observers which has as particular cases the “unknown input observers” and the “linear quadratic/H 2/H∞ optimal observers”. A smooth transition between these particular extreme cases through the general case is provided, corresponding to a transition of the disturbances patterns from entirely “singular” to entirely “regular” ones. Both “hard” (arbitrary) and “soft” (Gaussian or l2 signals) disturbances are allowed
Keywords :
H∞ control; asymptotic stability; discrete time systems; filtering theory; linear quadratic control; linear systems; matrix algebra; observers; reduced order systems; Gaussian signals; H2/H∞ optimality; discrete-time singular observers; disturbances patterns; l2 signals; linear quadratic/H2/H∞ optimal observers; unknown input observers; Estimation error; Extraterrestrial measurements; Filtering; Observers; Signal design; State estimation; State-space methods; Time measurement; Transfer functions; Vectors;
Conference_Titel :
Decision and Control, 1997., Proceedings of the 36th IEEE Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4187-2
DOI :
10.1109/CDC.1997.649782
