Parametric identification of transfer functions from frequency response data

Parametric identification of transfer functions from frequency response data
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根据频率响应数据对传递函数进行参数识别

DOI:
10.1049/cce:19950308
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发表时间:
1995
期刊:
影响因子:
--
通讯作者:
F. Gomez
F. Gomez
中科院分区:
--
文献类型:
--
作者:
A. Baños;F. Gomez

文献摘要

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利用加权模型的波德图和数据之间的差异的代价函数来解决参数识别问题。本文提出了一个用于参数估计(AFT=Ajustaiento de Funccions de Transferencia)的MatLab程序,其中包括从低频和高频响应数据中估计参数的单一规则。其余的参数是使用针对问题的适当优化技术来计算的。此外,本文还根据使用AFT的经验,提出了一种启发式识别方法。最后,给出了一个应用实例。
The problem of parametric identification is addressed using a cost function that weights the difference between the Bode diagrams of a model and its data. This article presents a MATLAB program for parametric estimation (AFT=Ajustamiento de Funcions de Transferencia) that includes single rules for the estimation of parameters from low- and high-frequency response data. The rest of the parameters are computed using an adequate optimisation technique for the problem. In addition, the article develops a heuristic identification method based on the experience in using AFT. Finally, a practical example is given.