Sensor fault signal reconstruction based on sliding mode observer for flight control systems
by Rui Wang; Chengjie Wang; Hui Sun; Zengqiang Chen; Yigang Sun
International Journal of Modelling, Identification and Control (IJMIC), Vol. 32, No. 3/4, 2019

Abstract: The sensor-fault detection for linear systems with bounded unknown input disturbance is investigated in this paper. By non-singular linear transformation, the sensor-faults were converted equivalently into actuator failures. The residual generation was proposed which is robust to disturbance and sensitive to sensor faults. A sliding mode observer was further designed to give the estimation of residuals. The sensor faults can be detected and reconstructed by using the estimation of residuals. For typical sensor failure modes, the simulation results about the longitudinal model of aircraft show the effectiveness of the proposed method.

Online publication date: Mon, 18-Nov-2019

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