Identification of Multi-Input Multi-Output Linear Systems From Frequency Response Data
- 1 March 1982
- journal article
- Published by ASME International in Journal of Dynamic Systems, Measurement, and Control
- Vol. 104 (1) , 58-64
- https://doi.org/10.1115/1.3149633
Abstract
A procedure for identifying a multi-input multi-output linear system from frequency response data is developed. Individual transfer functions from individual input to individual output are identified via the generalized least-squares theory. Orders of the transfer functions are determined by testing the residual. The minimal order multi-input multi-output system is identified based on the formation of a composite system comprising the subsystems associated with all individual outputs followed by decomposition. This is actually the problem of minimal realization involving inexact system parameters.Keywords
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