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Least squares estimation technique of Cole-Cole parameters from step response

Least squares estimation technique of Cole-Cole parameters from step response

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© The Institution of Engineering and Technology
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A method of nonlinear least squares to estimate the Cole-Cole impedance parameters (Ro, R∞, α, C) from collected time-domain step response datasets is reported. Experimentally estimated parameters from fruit tissue step responses are given and compared with numerical simulations of the acquired model.

Inspec keywords: bioelectric phenomena; biological tissues; least squares approximations; step response; time-domain analysis; parameter estimation

Other keywords: fruit tissue step responses; numerical simulations; least squares estimation technique; nonlinear least squares; Cole-Cole impedance parameters; time-domain step response datasets

Subjects: Bioelectricity; Interpolation and function approximation (numerical analysis); Bioelectric signals; Numerical approximation and analysis

References

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      • S. Grimnesand , O. Martinsen . (2000) Bioimpedance and bioelectricity basics.
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      • I. Podlubny . (1999) Fractional differential equations.
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