Simulation and Evaluation of Control Reliability on Shoulder-Fired Missiles Based On PID and Predictor Controllers

Shoulder-fired missiles are one of the most practical tricks in the military industry and are of great importance. In this type of aerospace weapon, due to the short flight time and high maneuvers of the missile in this short duration, the high importance of the control and guidance method to achieve the goal will be determined. In these types of missiles, the speed along the longitudinal axis cannot be controlled due to the solid fuel of the missile, so directional and lateral velocities are used by flight control tools to change the direction. In this paper, first, the dynamic equations of the Shoulder-fired missiles are extracted and then the equations related to predictive control methods and PID are extracted and simulated. Finally, in order to evaluate the accuracy of the simulation results along with the control techniques, the reliability analysis was implemented on both controllers and the results of the two control models were compared. For different flight phases, the use of each controller is specified in combination or individually and the strengths and weaknesses of each controller in different phases are analyzed.