Title :
Ripple-free conditions in multirate systems using LTI controllers
Author :
Cimino, M. ; Pagilla, P.R.
Author_Institution :
Sch. of Mech. & Aerosp. Eng., Oklahoma State Univ., Stillwater, OK, USA
fDate :
June 30 2010-July 2 2010
Abstract :
In this work necessary and sufficient conditions are derived for multirate systems to guarantee a ripple-free response to step reference signals. These conditions correspond to constraints on the coefficients of a finite impulse response pre-filter. The analysis is facilitated by the use of the lifting technique, the modified ℒ-transform, and up and down sampling operators. Several examples of feasible filters are provided to show the existence of multiple solutions to the considered problem.
Keywords :
FIR filters; Z transforms; signal sampling; LTI controller; Z-transform; down sampling operator; finite impulse response prefilter; lifted multirate system; ripple-free condition; step reference signal; up sampling operator; Control systems; Discrete transforms; Finite impulse response filter; Force control; Sampling methods; Steady-state; Sufficient conditions; Switches; USA Councils; Zinc;
Conference_Titel :
American Control Conference (ACC), 2010
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-7426-4
DOI :
10.1109/ACC.2010.5531385
