%0 Journal Article
%T Stability analysis of uncertain systems through Routh¡¯s criterion
%A M¨¢rcio Roberto Covacic
%A Marcelo Carvalho Minhoto Teixeira
%A Edvaldo Assun£¿£¿o
%J Semina : Ci¨ºncias Exatas e Tecnol¨®gicas
%D 2008
%I State University of Londrina
%X Routh¡¯s Stability Criterion is a simple and useful tool for stability analysis of control systems. In this work, it is proposed a method In this work, it is proposed a method for stability study of uncertain systems dx(t)/dt=(Ao+  A)x(t), using Routh¡¯s Stability Criterion in the analysis of the eigenvalues of Ao+  A. The method determines the range of values of a that guarantees the asymptotic stability of the system. An analog application for negative output feedback systems given by dx(t)/dt=(A-BKC)x(t), where K=kI, is also presented.
%K Stability
%K Uncertain Systems
%K Routh¡¯s Criterion
%K Output Feedback
%K Characteristic Polynomial.
%U http://www.uel.br/revistas/uel/index.php/semexatas/article/view/2979