Robustness for time-varying systems

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


We consider robust optimization for time-varying systems in terms of perturbations of fractional representations. Upper and lower bounds are given for the maximal radius of the operator ball around a given plant which can be stabilized by a single compensator. In the time-invariant case, these numbers are equal.

Original languageEnglish
Pages (from-to)247-263
Number of pages17
JournalMathematics of Control, Signals, and Systems
Issue number3
StatePublished - 1 Jan 1993


  • Coprime factorizations
  • Linear systems
  • Operator balls
  • Robustness
  • Stabilization
  • Time-varying

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Control and Optimization
  • Applied Mathematics


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