Relay-tuned finite spectrum assignment control of time delay processes

K. K. Tan, Q. G. Wang, T. H. Lee

Research output: Contribution to journalArticlepeer-review


In this paper, the finite spectrum assignment (FSA) control of first-order time delay processes is addressed, including stable and unstable processes. Controller design rules are provided and they require only specifications of classical closed-loop desired properties from the user. Astrom's relay auto-tuning is used to yield input-output transients in the closed-loop, from which the parameters of the model may be extracted. The stability of the so auto-tuned FSA system is discussed and simulation examples are included for illustration.

Original languageEnglish
Pages (from-to)123-131
Number of pages9
JournalISA Transactions
Issue number2
Publication statusPublished - 1998
Externally publishedYes


  • Finite spectrum assignment
  • Process control
  • System model
  • System stability
  • Time-delay

ASJC Scopus subject areas

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


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