Weight selection in feedback design with degree constraints

Mir Shahrouz Takyar, Ali Nasiri Amini, Tryphon T. Georgiou

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


We present an approach for feedback design which is based on recent developments in analytic interpolation with a degree constraint. Performance is cast as an interpolation problem with bounded analytic functions. Minimizers of a certain weighted-entropy functional provide interpolants having degree less than the number of constraints. The choice of weight parameterizes all such bounded degree solutions. However, the relationship between the weights and the shape of corresponding transfer functions is not direct. Thus, in this paper we develop a formalism that guides weight selection.

Original languageEnglish (US)
Pages (from-to)1951-1955
Number of pages5
JournalIEEE Transactions on Automatic Control
Issue number8
StatePublished - 2008


  • Control synthesis
  • Weighted entropy-like functionals


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