R. Nikoukhah, INNOVATIONS GENERATION IN THE PRESENCE OF UNKNOWN INPUTS - APPLICATION TO ROBUST FAILURE-DETECTION, Automatica, 30(12), 1994, pp. 1851-1867
Citations number
13
Categorie Soggetti
Controlo Theory & Cybernetics","Robotics & Automatic Control
The first step in innovations-based failure detection is the construct
ion of an innovations generator, i.e. a filter which, in the absence o
f failures from the inputs and the outputs of the system, generates a
zero-mean white process with known covariance called innovations. A de
cision on whether a failure has occurred is then made by monitoring an
d applying statistical tests to this innovations process. In this pape
r, a method for constructing innovations in the case where the model c
ontains unknown inputs and disturbances is presented. The solution is
complete in the sense that it covers 'singular' cases.