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This study is about <alternatives>$ H_{-}/H_{\infty } $<mml:math overflow="scroll"><mml:msub><mml:mi>H</mml:mi><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msub><mml:mrow><mml:mo>/</mml:mo></mml:mrow><mml:msub><mml:mi>H</mml:mi><mml:mrow><mml:mi mathvariant="normal">∞</mml:mi></mml:mrow></mml:msub></mml:math><inline-graphic xlink:href="IET-CTA.2017.0357.IM2.gif" /></alternatives>...
This paper proposes a robust fault detection observer based on zonotopes for discrete-time uncertain systems with sensor faults and unknown but bounded uncertainties. The main advantage of this method is that the observer gain of the robust zonotopic observer is designed to be robust against bounded uncertainties while being sensitive to faults. In order to detect sensor faults with low magnitudes,...
This paper presents a robust unknown input observer-based approach to deal with fault diagnosis for sampled-data control system with unknown input. Firstly a discrete-time model was considered to approximate its continuous-time dynamics. Secondly by considering the actuator or sensor fault as an auxiliary state vector, an augmented system is constructed. Thirdly we derive the structure of the proposed...
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