Further refinement on LMI-based digital redesign: delta-operator approach

Author

Lee, Ho Jae ; Park, Jin Bae ; Joo, Young Hoon

Author_Institution

Dept. of Electron. Eng., Inha Univ., Incheon

Volume

53

Issue

6

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

473

Lastpage

477

Abstract

This paper sharpens the recently developed linear-matrix-inequality-based digital redesign (LMI-based DR) technique. The motivation comes from the fact that some unexpected state matching performance might be experienced as a sampling period approaches zero. To improve the state matching performance for that case, a refined LMI-based DR is proposed by using the delta operator that creates rapprochement between the differential and the shift operators. It is proved that the analog control performance is recovered by the refined DR scheme in the fast sampling limit

Keywords

integrated circuit design; linear matrix inequalities; poles and zeros; LMI-based digital redesign; analog control performance; delta operator; linear matrix inequality; state matching performance; Control systems; Differential equations; Digital control; Eigenvalues and eigenfunctions; Linear matrix inequalities; Mediation; Robustness; Sampling methods; Stability; Stress; Delta-operator; digital redesign; linear matrix inequality; performance recovery; stability;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2006.870550

Filename

1643464