H. S. Tharp, J. Medanic, W. R. Perkins

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


A design methodology is presented which makes it possible to trade off performance with robustness, as characterized by frequency-domain properties, such as loop gain. The basic performance and stability goals are achieved with a nominal linear quadratic regulator design. Frequency-domain issues are then integrated into the design by using, in the next phase of design, a frequency-weighted performance criterion. The structure of this performance criterion allows the eigenstructure associated with the nominal design to be retained. An unstable nonminimum-phase example illustrates the methodology.

Original languageEnglish (US)
Pages (from-to)1720-1725
Number of pages6
JournalProceedings of the IEEE Conference on Decision and Control
StatePublished - Dec 1 1987
Externally publishedYes

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modeling and Simulation
  • Control and Optimization


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