New fault detection approach for linear MISO systems

In this work we use a new representation for linear MISO system entitled ARX-Laguerre MISO model in order to detect faults by developing a new structure of proportional observer. This is covered without using physical modeling of the system (such as a system of differential equations) but by filtering the inputs and the output of the system. Therefore, the proposed proportional observer aims to estimate the filtered inputs and the filtered output of the system where a LMI formulation is considered. The efficacy of the proposed proportional observer is illustrated and tested on a numerical simulation.