Optimal digital redesign of continuous-time systems using fractional-order hold

I. E. Sheen, J. S.H. Tsai, L. S. Shieh

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This paper proposes a novel optimal digital redesign technique using fractional-order hold (f.o.h.) for finding a dynamic digital control law from the available analog counterpart and for simultaneously minimizing a quadratic performance index. A method for converting the dynamic digital control law into a static one, through a tuning parameter, is also presented. The proposed technique can be applied to a system cascaded with a more general class of reference inputs than simple step inputs, and the developed digital controller can be implemented via low cost microcomputers. The superiority of using the fractional-order hold over the zero-order hold and the first-order hold is exploited.

Original languageEnglish
Pages (from-to)399-422
Number of pages24
JournalOptimal Control Applications and Methods
Issue number6
Publication statusPublished - 1997 Jan 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Software
  • Control and Optimization
  • Applied Mathematics


Dive into the research topics of 'Optimal digital redesign of continuous-time systems using fractional-order hold'. Together they form a unique fingerprint.

Cite this