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- Giovanni Marro, Federico Barbagli
- Kybernetika
- 1999

The purpose of this paper is to derive constructive necessary and sufficient conditions for the problem of disturbance decoupling with algebraic output feedback. Necessary and sufficient conditions have also been derived for the same problem with internal stability. The same conditions have also been expressed by the use of invariant zeros. The main tool… (More)

- Giovanni Marro, Domenico Prattichizzo, Elena Zattoni
- SIAM J. Control and Optimization
- 2003

A new algorithmic setting is proposed for the discrete-time finite-horizon linear quadratic (LQ) optimal control problem with constrained or unconstrained final state, no matter whether the problem is cheap, singular, or regular. The proposed solution, based on matrix pseudoinversion, is completed and made practically implementable by a nesting procedure… (More)

- Giovanni Marro, Domenico Prattichizzo, Elena Zattoni
- Automatica
- 2002

The problem of the non-causal inversion of linear multivariable discrete-time systems is analyzed in the geometric approach framework and is solved through the computation of convolution pro#les which guarantee perfect tracking under the assumption of in#nite-length preaction and postaction time intervals. It is shown how the shape of the convolution… (More)

- Giovanni Marro, Domenico Prattichizzo, Elena Zattoni
- IEEE Trans. Automat. Contr.
- 2006

- Augusto Ferrante, Giovanni Marro, Lorenzo Ntogramatzidis
- Automatica
- 2005

Self-bounded controlled invariant subspaces play a key role in the synthesis of minimal-order dynamic regulators attaining model following by output feedback with stability. The approach, completely embedded in the geometric context, provides insight into the internal eigenstructure of the minimal self-bounded controlled invariant subspace, thus leading to… (More)

- Giovanni Marro, Elena Zattoni
- Automatica
- 2010

- Giovanni Marro, Domenico Prattichizzo, Elena Zattoni
- IEEE Trans. Automat. Contr.
- 2002

The Hamiltonian system related to discrete-time cheap linear quadratic Riccati (LQR) problems is analyzed in a purely geometric context, with the twofold purpose of getting a useful insight into its structural features and deriving a numerically implementable solution for the infinite-horizon case by only using the standard geometric approach routines… (More)

- Domenico Prattichizzo, Lorenzo Ntogramatzidis, Giovanni Marro
- Automatica
- 2008

The cheap LQ regulator is reinterpreted as an output nulling problem which is a basic problem of the geometric control theory. In fact, solving the LQ regulator problem is equivalent to keep the output of the related Hamiltonian system identically zero. The solution lies on a controlled invariant subspace whose dimension is characterized in terms of the… (More)

- Giovanni Marro, Elena Zattoni
- Automatica
- 2005