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Transfer Function Matrix Identification From Input-Output Frequency Response Data, Zhiqiang Gao, Bruce Tabachnik, Razvan V. Savescu

Electrical and Computer Engineering Faculty Publications

A new formulation of transfer function matrix identification in frequency domain is introduced. It reduces the problem to a simple linear least square problem. It is shown that such a system identification problem is a special case of a matrix interpolation problem and much insight can be obtained by examining its algebraic characteristics. A new approach is proposed to determine the transfer function matrix of a multi-input and multi-output system from the input-output data. It eliminates the common assumption in the literature that the frequency response of the system is given. Its efficiency and practicality …