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Mixed μ robust finite word length controller design
2009 Edition, December 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A novel finite word length (FWL) controller design is developed in the framework of mixed μ theory. A robust FWL controller performance measure is proposed which takes into account the standard robust control requirements as well...

Guaranteed robust stability of the closed-loop systems for digital controller implementations via orthogonal Hermitian transform
2004 Edition, Volume 34, August 1, 2004 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper, an approach for robust stability analysis of a digital closed-loop system for digital controller implementations subject to finite word length (FWL) effects is proposed. Uncertainties caused by the roundoff and computational errors subject to FWL...

Non-fragile robust HGêP controller design for 4WS-4WD vehicle
2016 Edition, May 1, 2016 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Most of the methods about designing controllers introduced for four-wheel-steer (4WS) and four-wheel-drive (4WD) vehicles are derived with the assumption that the controller parameters are constant. However, in the running process of the actual system, because of word...

Word length selection method based on mixed simulation for digital PID controllers implemented in FPGA
2008 Edition, June 1, 2008 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Digital controllers implemented in an FPGA for switching power converters are becoming an important alternative to the traditional analog solutions. Assuming that the digital controller is described using a hardware description language (VHDL), the ADVance MS mixed-signal...

A New Approach for Finite-Precision Controller Realizations
2006 Edition, Volume 1, January 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A new approach is proposed to design optimal finite word length (FWL) realizations of digital controllers implemented in fixed-point arithmetic. An analytical method is first formulated to obtain a global optimal controller realization that optimizes an FWL...

Controller design: moving from theory to practice
1993 Edition, Volume 13, August 1, 1993 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

It is suggested that modern controller design packages often fall short of offering what is truly practical: lower order controllers, discrete-time controllers operating in a sampled-data loop, and finite word length (FWL) realizations of...

An improved closed-loop stability related measure for finite-precision digital controller realizations
2001 Edition, Volume 46, July 1, 2001 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The pole-sensitivity approach is employed to investigate the stability issue of the discrete-time control system, where a digital controller implemented with finite word length (FWL), is used. A stability related measure is derived, which is more accurate in estimating...

Optimal Controller Realisations with the Smallest Dynamic Range
2006 Edition, December 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

An approach is proposed to design optimal finite word length (FWL) realisations of digital controllers implemented in fixed-point arithmetic. A minimax-based search procedure is first used to obtain an optimal controller realisation that optimises an FWL...

Two-parameter robust repetitive control with application to a novel dual-stage actuator for noncircular Machining
2004 Edition, Volume 9, December 1, 2004 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This work presents a robust repetitive controller design for a novel dual-stage actuator system. The dual-stage actuator, which consists of an electrohydraulic actuator for 25-mm-gross motion and a piezoelectric actuator for 40-/spl mu/m fine motion, is designed for...

Optimal mechano-electric stabilization of cardiac alternans
2008 Edition, June 1, 2008 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Alternation of normal action potential morphology in the myocardium is a condition with a beat-to-beat oscillation in the length of the electric wave which is linked through electromechanical coupling to the cardiac muscle contraction, and is believed to be the first manifestation of the...

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