Combined gain and phase margins

Zhuo Yun Nie, Qing Guo Wang, Min Wu, Yong He

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this note, the limitations of conventional or separate gain or phase margin are shown. Then, the combined gain and phase margins are introduced to overcome the limitations and suit both stable and unstable systems. A simple method for their computation is presented and their applications in stabilization is demonstrated.

Original languageEnglish
Pages (from-to)428-433
Number of pages6
JournalISA Transactions
Issue number4
Publication statusPublished - Oct 2009
Externally publishedYes


  • Combined gain and phase margins
  • Gain margin
  • Phase margin
  • Stability robustness
  • Stabilization
  • Unstable systems

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Instrumentation
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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