Design of Air-to-ground Missile Attitude Control System Based on Non-recursive Method
Affected by the complex flight environment and assembly accuracy, the aerodynamic parameters of air-to-ground missile change rapidly during flight, and the model is uncertain. In order to solve this problem, an attitude control method of air-to-ground missile based on non-recursive method is proposed in this paper. A disturbance observer is used to estimate the model uncertainty and the perturbation of aerodynamic parameters, and the feedforward compensation is imple-mented by non-recursive design method to achieve stability of the system. Finally, the pitch channel model of a certain type of air-to-ground missile is verified by digital simulation. The simulation results show that the designed controller has strong robustness and fast convergence control performance. Compared with the classical control method and other recursive meth-ods, the convergence speed of this method is increased by about 50％. At the same time, the controller has simple struc-ture, which is advantageous for the practical engineering to apply.
air-to-ground missilenonlinear systemnon-recursive controlattitude control
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