Title :
Laguerre approximation of fractional systems
Author_Institution :
Dipt. di Ingegneria dell´´Innovazione, Lecce Univ., Italy
fDate :
9/26/2002 12:00:00 AM
Abstract :
Systems characterised by fractional power poles can be called fractional systems. Here, Laguerre orthogonal polynomials are employed to approximate fractional systems by minimum phase, reduced order, rational transfer functions. Both the time and the frequency-domain analysis exhibit the accuracy of the approximation
Keywords :
closed loop systems; frequency-domain analysis; poles and zeros; polynomials; reduced order systems; robust control; stochastic systems; time-domain analysis; transfer functions; Laguerre approximation; closed-loop system; fractional power poles; fractional systems; frequency-domain analysis; minimum phase; orthogonal polynomials; rational transfer functions; reduced order; robust controllers; time-domain analysis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020841
