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Exact and inexact LQG model matching problems

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2 Author(s)
Casavola, A. ; Dipartimento di Sistemi ed Inf., Firenze Univ., Italy ; Mosca, E.

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

Published in:

Automatic Control, IEEE Transactions on  (Volume:38 ,  Issue: 10 )