Identificação de sistemas lineares com base na resposta temporal ao degrau unitário e por ajuste ótimo da resposta em frequência

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Marcelo A Oliveira
Roberto Ades
Paulo C Pellanda

Abstract

This paper presents a method to identify the transfer function of a dynamic system based on its unit step response and on the optimal tuning of its measured frequency response. Transfer function polynomials coefficients are analytically computed in order to minimize a cost function based on a square norm. Better tunings can be obtained by using this method in terms of frequency response as well as in steady state time response. Three examples systems are used to demonstrate thi advantages: the first two are linear academic examples; the third one is an actual DC electric motor including nonlinearity effects and noises arising from the data acquisition process

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How to Cite
Oliveira, M. A., Ades, R., & Pellanda, P. C. (2019). Identificação de sistemas lineares com base na resposta temporal ao degrau unitário e por ajuste ótimo da resposta em frequência. Revista Militar De Ciência E Tecnologia, 35(4). Retrieved from https://ebrevistas.eb.mil.br/index.php/CT/article/view/2815
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