H finite memory controls for linear discrete-time state-space models

Choon Ki Ahn, Soohee Han, Wook Hyun Kwon

Research output: Contribution to journalArticle

46 Citations (Scopus)


In this brief, we propose a new type of output feedback control, called a Hinfin; finite memory control (HFMC), for discrete-time state-space systems. Some constraints, such as linearity, unbiasedness to the optimal state feedback control, and finite memory structure with respect to an input and an output are required in advance. Among the controls needed with these requirements, we choose the HFMC to optimize the H performance criterion. The HFMC is obtained by solving the linear matrix inequality problem with a parameterization of a linear equality constraint. We show through simulation that the HFMC is more robust against uncertainties, and is faster in convergence than existing H output feedback controls.

Original languageEnglish
Pages (from-to)97-101
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Issue number2
Publication statusPublished - 2007 Feb 1
Externally publishedYes



  • Finite memory structure
  • H control
  • Output feedback control
  • Unbiasedness to the optimal state feedback control

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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