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Inicio Revista Iberoamericana de Automática e Informática Industrial RIAI Un algoritmo secuencial, aleatorio y óptimo para problemas de factibilidad robu...
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Vol. 10. Núm. 1.
Páginas 50-61 (enero - marzo 2013)
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Vol. 10. Núm. 1.
Páginas 50-61 (enero - marzo 2013)
Artículo
Open Access
Un algoritmo secuencial, aleatorio y óptimo para problemas de factibilidad robusta
A sequentially optimal randomized algorithm for robust feasibility problems
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3970
T. Álamoa,
Autor para correspondencia
alamo@cartuja.us.es

Autor para correspondencia.
, R. Tempob, D.R. Ramíreza, A. Luquea, E.F. Camachoa
a Dpto. Ingeniería de Sistemas y Automática, Escuela Técnica Superior de Ingenieros, Universidad de Sevilla, Camino Descubrimientos, s/n., 41092 Sevilla, España
b IEIIT-CNR, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy
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Resumen

En este trabajo (del cual se presentó una versión preliminar en Alamo et al. (2007)) se propone un algoritmo aleatorio para determinar la factibilidad robusta de un conjunto de desigualdades lineales matriciales (Linear Matrix Inequalities, LMI). El algoritmo está basado en la solución de una secuencia de problemas de optimización semidefinida sujetos a un bajo número de restricciones. Se aporta además una cota superior del número máximo de iteraciones que requiere el algoritmo para resolver el problema de factibilidad robusta. Finalmente, los resultados se ilustran mediante un ejemplo numérico.

Palabras clave:
Factibilidad robusta
desigualdades lineales matriciales
algoritmos aleatorios
control robusto
Abstract

This paper proposes a randomized algorithm for feasibility of uncertain LMIs. The algorithm is based on the solution of a sequence of semidefinite optimization problems involving a reduced number of constraints. A bound of the maximum number of iterations required by the algorithm is given. Finally, the performance and behaviour of the algorithm are illustrated by means of a numerical example.

Keywords:
Robust feasibility linear matrix inequalities randomized algorithms robust control
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