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Computation of transfer function data from frequency response data with application to data-based root-locus
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DOI：10.1016/j.conengprac.2014.11.010.png)
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Abstract
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This paper describes the computation and use of transfer function data (TED) computed from frequency response data of a system. TFD can be regarded as a sampled, data-based representation of the transfer function. TED can be computed from frequency response data for stable, lightly damped systems using a Cauchy integral. Computational accuracy and complexity are extensively discussed. As a use-case of TFD it is shown that a root-locus can be computed in a data-based way, using only frequency response data of a system. Experiments on a benchmark motion system demonstrate the use of TED In minimizing the settling time. (C) 2014 Elsevier Ltd. All rights reserved.
Keywords:
Data-based
Transfer function data
Frequency response data
Cauchy
Damping
Root-locus
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