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An attitude tracking control scheme based on non-singular terminal sliding mode and double power reaching law is proposed for near space vehicle in presence of unknown compound disturbance. In addition, nonlinear disturbance observer is designed to estimate the compound disturbance. Furthermore, Lyapunov function method is used to prove the stability and feasibility of the method. Finally, simulation...
A novel sliding mode method is proposed for near space vehicles with unknown external disturbance, parameter uncertainties and modeling error. The self-organizing hermite-polynomial-based neural network controller is presented to estimate the unknown compound disturbance. Based on it, we propose backstepping sliding mode strategy which may reduce the initial gains and the stability is proved by Lyapunov...
A robust adaptive terminal controller is proposed for attitude system of near space vehicle. Firstly, NSV dynamic model is presented, which includes nonlinear, uncertainty and disturbance. Secondly, an second order sliding mode disturbance observer is used to estimate the unknown disturbance. Then, in order to overcome the chattering problem in traditional sliding mode, the design process of second-order...
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