, ) and the following rational function problem: find? ? H 2 a reduced r-th order (without delay) approximation which minimises ||T d ??|| H2 , then, if? is a local minimum of this problem
, Based on the above conditions and remark, let us now derive the IO-dITIA (for Input-Output delay Iterative Tangential Interpolation Algorithm), an interpolation-based algorithm, similar to the MIMO IRKA one
, The IO-dITIA procedure and computational considerations
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