Act-and-wait control concept for discrete-time systems with feedback delay

Research output: Contribution to journalArticle

39 Citations (Scopus)


Linear n-dimensional discrete-time systems are considered with feedback delay r at the m-dimensional input. These systems have n+mr poles. The act-and-wait control concept is introduced: the feedback is periodically switched on and off during the control with period k. It is switched on for one step (act) and switched off for (k-1) number of steps (wait). It is shown that if the act-and-wait period is larger than the time delay (i.e. k>r), then mr poles of the system are equal to zero, and the remaining poles can be placed arbitrarily if the system matrices satisfy certain controllability conditions.

Original languageEnglish
Pages (from-to)553-557
Number of pages5
JournalIET Control Theory and Applications
Issue number3
Publication statusPublished - May 17 2007

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Human-Computer Interaction
  • Computer Science Applications
  • Control and Optimization
  • Electrical and Electronic Engineering

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