Browsing by Subject "Transfer matrix"

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    Fixed zeros of decentralized control systems
    (IEEE, 2000) ÜÜnyelioglu, K. A.; Özgüner, Ü.; Özgüler, A. B.
    This paper considers the notion of decentralized fixed zeros for linear, time-invariant, finite-dimensional systems. For an N-channel plant that is free of unstable decentralized fixed modes, an unstable decentralized fixed zero of Channel i (1 ≤ i ≤ N) is defined as an element of the closed right half-plane, which remains as a blocking zero of that channel under the application of every set of N - 1 controllers around the other channels, which make the resulting single-channel system stabilizable and detectable. This paper gives a complete characterization of unstable decentralized fixed zeros in terms of system-invariant zeros.
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    A Solution to the diagonalization problem by constant precompensator and dynamic output feedback
    (IEEE, 1989) Eldem, V. A.; Ozguler, A. B.
    A solution is obtained for the problem of diagonalization (row by row decoupling) by a constant precompensator and a dynamic output feedback compensator of a p x m linear time-invariant system. The solvability condition is compact and concerns the dimension of a single subspace defined via the concepts of “essential rows” and “static kernels“ associated with the transfer matrix. A characterization of the set of all solutions to the problem is also given. In solving this dynamic feedback problem, we also obtain a complete solution to its state-feedback counterpart, namely, the restricted state-feedback problem of diagonalization. © 1989 IEEE