Stability and performance recovery within discretized non-linear control systems

G Herrmann, SK Spurgeon, C Edwards

    Research output: Contribution to journalArticlepeer-review


    In this paper, a closed-loop fast sampling analysis of a discretized (emulated) continuous-time controller in a sampled-data environment is presented. The analysis involves a general weighted version of the Lp-norm. This allows a qualitative and quantitative stability and performance analysis for an emulated controller. Several examples are used to show the relevance of these results for the analysis of sampled-data implementations and the computation of quantitative upper limits on the sampling period to achieve recovery of stability and performance.
    Original languageEnglish
    Pages (from-to)1045-1054
    Number of pages10
    Issue number4
    Publication statusPublished - Apr 2008


    • Output constraint
    • Override control
    • Non-smooth Lyapunov function
    • High-gain component


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