Title :
Exact and inexact LQG model matching problems
Author :
Casavola, Alessandro ; Mosca, Edoardo
Author_Institution :
Dipartimento di Sistemi ed Inf., Firenze Univ., Italy
fDate :
10/1/1993 12:00:00 AM
Abstract :
The design of discrete-time LQG (linear-quadratic-Gaussian) controllers that yield closed-loop systems that match a provided model is addressed. The solution is in the form of a two-degree-of-freedom controller having feedback and feedforward paths that independently provide the optimal actions for disturbance rejection and model matching. Exact and approximate model matching cases are discussed in a unified fashion
Keywords :
closed loop systems; control system synthesis; discrete time systems; feedback; optimal control; approximate model matching; closed-loop systems; disturbance rejection; exact model matching; feedback; feedforward; inexact LQG model matching; optimal actions; two-degree-of-freedom controller; Control system synthesis; Costing; Covariance matrix; Feedback; Optimal control; Performance analysis; Polynomials; Robust control; Stability; Stochastic processes;
Journal_Title :
Automatic Control, IEEE Transactions on
