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Smooth Sliding Mode Controller Design for Robust Missile Autopilot

机译:鲁棒导弹自动驾驶仪平滑滑模控制器设计

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摘要

Presented is a method of smooth sliding mode control design to provide for the second- order sliding mode on the selected sliding surface. The control law is a nonlinear dynamic feedback that in absence of unknown disturbances provides for finite-time convergence of the second-order reaching phase dynamics. The application of the second-order disturbance observer in a combination with the proposed continuous control law gives the second-order sliding accuracy in presence of unknown disturbances and the discrete-time control update. The piecewise constant control feedback is smooth. The proposed control scheme is applied to a generic three-loop control system, and the proposed multiple time scale sliding mode design is demonstrated on the simplified model of a ballistic interceptor missile.

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