An H∞ approach to fault detection for sampled-data systems

This paper studies fault detection problems for sampled-data (SD) systems. At first a discrete-time residual generator is constructed in two steps. With the help of introduced operators, the residual is analyzed quantitatively. Following the principle of integrated design, the design of fault detection system is then formulated as an optimization problem. Finally, two design procedures using H_∞ optimization technique are provided and full decoupling problem is discussed.