Reconstruction of sensor faults

Abstract

This chapter will focus specifically on sensor faults. Different formulations will be considered in which the measured output signals are filtered to yield ‘fictitious systems’ in which sensor faults appear as ‘actuator faults’. Consequently, the actuator fault reconstruction ideas from the previous chapters can be applied to the fictitious system to reconstruct the sensor fault. The results will also be extended to the case of unstable plants which result in nonminimum phase configurations post-filtering.