kappa - Frequency-wise nu-gap metric

Version 1.0.0.0 (3,83 ko) par Daniel J. Auger
This function calculates the frequency-wise version of the nu-gap between two systems.
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Mise à jour 20 mai 2013

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[k,ksup,omega] = kappa(P1,P2) or [k,ksup] = kappa(P1,P2,omega) returns the frequency-wise v-Gap between the dynamical systems P1 and P2 as defined in Vinnicombe (2000, p.123). This essentially gives a frequency-wise measure of the difference between two plants and the worst-case drop in closed-loop performance if a controller designed for one system is used with the other. Following the reference, ksup is the supremum of k if [P2, -P1'] has the same number of open RHP poles as [P1, -P1'], otherwise it will be set to unity.

kappa(P1,P2) or kappa(P1,p2,omega) without any output arguments will display the results in graphical form.

REFERENCE
1. Vinnicombe, G. (2000) Uncertainty and Feedback: H-Infinity Loop-Shaping and the v-Gap Metric. London: Imperial College

See also: sigma, rho.

Citation pour cette source

Daniel J. Auger (2024). kappa - Frequency-wise nu-gap metric (https://www.mathworks.com/matlabcentral/fileexchange/41789-kappa-frequency-wise-nu-gap-metric), MATLAB Central File Exchange. Extrait(e) le .

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Créé avec R2012b
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kappa_/

Version Publié le Notes de version
1.0.0.0