Robust adaptive backstepping control for mass moment missile with dynamic surface filtering

Based on the inversion technology, tracking control problems on the pitch and yaw channel of the mass moment missile with dual-moving masses are solved. Based on the established affine control model, and taking into consideration of the uncertain factors such as moving mass's velocity, acceleration, guides and so on, the robust adaptive inverse control law is given. To solve the calculating expansion problem that exists in backstepping methodology, a sliding mode filter to estimate the derivative of the virtual control variable is designed. Since the gain coefficient derives from backstepping can't guarantee the ideal performance index, genetic algorithm is used to optimize the controller parameters. Simulation results demonstrate that the algorithm is effective.