Digital modelling and digital redesign of sampled-data uncertain systems

L. S. Shieh, W. M. Wang, J. S.H. Tsai

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


A new method for digital model conversion of a continuous-time uncertain system and a new digital redesign method for robust control of a sampled-data uncertain system are presented. The concept of the principle of equivalent areas together with interval arithmetic is utilized for finding the discrete-time uncertain model and the digital robust control law from the continuous-time uncertain state equation and the analogue robust control law, respectively. Using the newly digitally redesigned controllers, the resulting dynamic states of the digitally controlled sampled-data uncertain systems are able to closely match those of the original analogously controlled continuous-time uncertain systems for a relatively longer sampling period.

Original languageEnglish
Pages (from-to)585-594
Number of pages10
JournalIEE Proceedings: Control Theory and Applications
Issue number6
Publication statusPublished - 1995 Nov

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Instrumentation
  • Electrical and Electronic Engineering


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