Condições Suficientes Para Análise de Extremos na Resposta a Degrau de Sistemas Lineares (Sufficients Conditions for Analysis of Extrema in the Step-response of the Linear Control Systems)

Célia Aparecida Reis (, Neusa Augusto Pereira Silva (

Faculdade de Engenharia de Ilha Solteira, FEIS/UNESP
This paper appears in: Revista IEEE América Latina

Publication Date: Dec. 2011
Volume: 9,   Issue: 7 
ISSN: 1548-0992

This note deals whith the problem of extrema which may occur in the step-response of a stable linear system with real zeros and poles. Some simple sufficients conditions and necessary conditions are presented for analyses when zeros located between the dominant and fastest pole does not cause extrema in the step-response. These conditions require knowledge of the pole-zero configuration of the corresponding transfer-function.

Index Terms:
Transfer functions, step-response, pole, zero extrema   

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