Titlebook: Digital Controller Implementation and Fragility; A Modern Perspective Robert S. H. Istepanian,James F. Whidborne Book 2001 Springer-Verlag

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https://doi.org/10.1007/978-3-531-18697-9used by finite word-length arithmetic. The effects of these numerically induced errors can be measured both in terms of the sensitivity of the closed-loop performance due to changes in the coefficients of the control algorithm, and the effect of internal “noise” resulting from roundoff errors on the

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Kirche und Konfessionslosigkeitof optimality. Minimisation of the statistical word-length involves maximisation of robustness to structured perturbations in the digital controller, and maximisation of controller sparseness. The robustness issue is reformulated as a Linear Matrix Inequality problem for which efficient numerical so

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https://doi.org/10.1007/978-3-658-08894-1the digital controller is implemented in a state space realisation with finite word-length. A pole-sensitivity based stability measure is derived. Noting that this measure is realisation dependent, the optimal controller realisation problem is to find those realisations that maximise this measure. A

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