Szukana fraza: [Abstract = "To reduce the computational requirement, the passive GLR test will be derived from a state estimator designed on a fixed reference model directly sensitive to system changes. We will show that active and passive GLR tests will be mixed and give interesting results compared with the GLR of Willsky and Jones \(1976\), and that they can be easily integrated in a reconfigurable Fault\-Tolerant Control System \(FTCS\) to asymptotically recover the nominal system performances of the jump\-free system."]