Objetivo: O desenvolvimento tecnológico das últimas décadas tem impulsionado a produção massiva de recursos informacionais e mudanças significativas nos processos coleta gestão dados em praticamente todas as áreas. Tal cenário não é diferente no âmbito científico, onde tratamento adequado se apresentado como um desafio para pesquisadores. A presente pesquisa teve objetivo apresentar protótipo W...

model order reduction is known as the problem of minimizing the -norm of the difference between the transfer function of the original system and the reduced one. in many papers, linear matrix inequality (lmi) approach is utilized to address the minimization problem. this paper deals with defining an extra matrix inequality constraint to guarantee that the minimum phase characteristic of the sys...

Security of an encryption system is formally established through the properties of an abstract game played between a challenger and an adversary. During the game, the adversary will be provided with all information that he could obtain in an attack model so that the adversary is fully empowered to carry out the break. The information will be provided to the adversary through the answers of appr...

This paper introduces an interpolation framework for the weighted-H2 model reduction problem. We obtain a new representation of the weighted-H2 norm of SISO systems that provides new interpolatory first order necessary conditions for an optimal reduced-order model. The H2 norm representation also provides an error expression that motivates a new weighted-H2 model reduction algorithm. Several nu...