D-stability analysis for discrete uncertain time-delay systems

Feng Hsiag Hsiao*, Jiing Dong Hwang, Shing Pai Pan

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

19 Scopus citations


Two cases of the robust D-stability criterion are derived for discrete uncertain systems with multiple time delays. One is a direct test and the other is a boundary test. These cases provide the sufficient conditions under which all solutions of the characteristic equation remain inside the specific disk D(α, τ) in the presence of parametric uncertainties.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalApplied Mathematics Letters
Issue number2
StatePublished - 03 1998


  • D-pole placement
  • D-stability
  • Multiple time delays


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