Detection of Dead Time and Relative Degree using Wavelet Transform

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  • Wavelet変換によるむだ時間と相対次数の同定
  • Wavelet ヘンカン ニヨル ムダ ジカン ト ソウタイ ジスウ ノ ドウ

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Abstract

This paper proposes a novel estimation method of dead time and relative degree, in which wavelet transformation (WT) is applied to the step response of linear system with dead time. By wavelet analysis, it is found that the dead time is detected from the co-form point of WT iso-phase lines and the relative degree is caluculated from scailing principle of WT. An example is given with simple numerical simulations on a 3rd order linear system.

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