Abstract
In this paper, we consider designing of a FDI filter to detect faults of sensors which are used in an active control system. Required capabilities of FDI filters are sensitivity of occuring faults, and robustness against modeling errors or disturbances. In many cases, there are small discrepancies between a real system and its model in space systems. Thus, effects of disturbances provide serious problems for designing a FDI filter. In this paper, we consider to design a FDI filter by using H∞ filterng technique. Performance of designed FDI filer is demonstrated by some experiments.
