An H/sub ∞/ filtering approach to robust detection of failures in dynamical systems

Abstract

Using results on H/sub /spl infin// output estimation theory this paper deals with the problem of designing robust detection filters in a continuous time setting for detecting failures in uncertain dynamical systems where methods for decoupling of the fault effects from system perturbations are not available. Through the appropriate choice of the filter gain a tradeoff is made between the effect of worst-case disturbance and L/sub 2/ norm of the filter error.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>