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Finite-time stabilization of large-scale stochastic nonlinear feedforward systems

This paper considers the finite-time output feedback stabilization in probability of a class of large-scale stochastic nonlinear feedforward systems. By introducing an appropriate coordination, an equivalent system of the original system with tunable gain is obtained. Then by constructing a observer and determining the tunable gain, the output feedback stabilized controller in probability of the original systems is finally given and analysed based on the stochastic Lyapunov theorem on finite-time stability.