Shift Realizations and Their Algebraic Riccati Equations
نویسنده
چکیده
We study the solutions of the discrete time algebraic Riccati equation for stable linear systems. We give sharpened existence results for such solutions (in comparison to our earlier work [4]) under an extra assumption that makes the state space isomorphism techniques applicable. This extends some of the known results on the parameterization of stable spectral factors for realizations with infinite dimensional state spaces.
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