Title :
Dual control based on rolling optimization
Author :
Qian, Fucai ; Liu, Ding ; Chen, Xiaoke
Author_Institution :
Sch. of Autom. & Inf. Eng., Xi´´an Univ. of Technol., China
Abstract :
An innovative dual control strategy based on rolling optimization is presented for the parameter uncertainty linear quadratic Gaussian system control problem. By approximately calculating the performance index, the strategy obtains the sub-optimal solution to the original control problem. Adopted Kalman filtering method and by approximating the functional equation of cost-to-go function with respect to the posterior probability, the explicit recursive expression of the original unsolvable functional equation solution is obtained. The coupling between the control and identification is decoupled by the rolling optimization approach.
Keywords :
Kalman filters; approximation theory; functional equations; linear quadratic Gaussian control; linear systems; optimisation; performance index; probability; recursive estimation; suboptimal control; uncertain systems; Kalman filtering method; approximation theory; cost-to-go function; dual control method; explicit recursive expression; functional equation; identification; linear quadratic Gaussian system control problem; parameter uncertainty system; performance index; posterior probability; rolling optimization method; suboptimal control; Automatic control; Automation; Control systems; Dynamic programming; Equations; Filtering; Kalman filters; Optimal control; Performance analysis; Uncertain systems;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1340615