Robust LTV feedback synthesis for SISO non-linear plants

O. Yaniv*, R. Boneh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Given a feedback system with uncertain nonlinear plant, it is required that the plant's output, to a set of command inputs, will satisfy certain specifications, i.e., will be bounded between a maximum response β(t) and a minimum response α(t). A rigorous synthesis technique to solve this problem using an LTV controller is developed. A design example is included, and it is shown that the LTV design has much lower bandwidth as compared to LTI designs. All design steps utilize the well-established QFT technique for LTI SISO uncertain systems. The methodology also suits rejection of disturbances at the plant's input or output, and for output specifications for nonzero initial conditions.

Original languageEnglish
Pages (from-to)11-28
Number of pages18
JournalInternational Journal of Robust and Nonlinear Control
Issue number1
StatePublished - Jan 1997


  • Control theory
  • Feedback
  • Nonlinear systems
  • Robust control


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