Szukana fraza: [Abstract = "Robustness to unknown inputs is formulated in the sense of the H\[the sign of infinity\]\-norm by means of the bounded real lemma \(BRL\) for LPV delayed systems. In order to formulate fault sensitivity conditions, a reference model which characterizes the ideal residual behavior in a faulty situation is considered. The residual error with respect to this reference model is computed."]