Abstract
In this study, the robust fault tolerant tracking problem is investigated for a linearized hypersonic vehicle model with the bounded external disturbance and the sensor fault. Firstly, the nonlinear longitudinal dynamics of hypersonic vehicle is linearized as a linear time-invariant system with sensor fault, a reference model is introduced for the aim of fault tolerant tracking control. And then an observer-based fault tolerant output feedback tracking controller design approach is proposed by using the linear matrix inequalities (LMIs) technique. The asymptotic stability of the whole closed-loop system is analyzed using the well-known Lyapunov stability method. Finally, the simulation results are presented to verify the applicability of the developed fault tolerant approach.
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