Title :
A retrospective correction filter for discrete-time adaptive control of nonmiminum-phase systems
Author :
Santillo, Mario A. ; Bernstein, Dennis S.
Author_Institution :
Dept. of Aerosp. Eng., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
We present a discrete-time adaptive control law that is effective for systems that are unstable, MIMO, and/or nonminimum phase. The adaptive control algorithm provides guidelines concerning the modeling information needed for implementation. This information includes a sufficient number of Markov parameters to capture the sign of the high-frequency gain as well as the nonminimum-phase zeros. No additional information about the poles or zeros need be known.We present numerical examples to illustrate the algorithm¿s effectiveness in handling nonminimum-phase zeros.
Keywords :
MIMO systems; Markov processes; adaptive control; discrete time systems; filtering theory; gain control; phase control; poles and zeros; MIMO system; Markov parameter; discrete-time adaptive control; high-frequency gain; nonmiminum-phase zero system; retrospective correction filter; unstable system; Adaptive control; Adaptive filters; Control systems; Guidelines; Information analysis; MIMO; Performance analysis; Robust control; Stability analysis; Uncertainty;
Conference_Titel :
Decision and Control, 2008. CDC 2008. 47th IEEE Conference on
Conference_Location :
Cancun
Print_ISBN :
978-1-4244-3123-6
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2008.4739238
