Design of predictive control and evaluate the effects of flight dynamics on performance of one axis gimbal system, considering disturbance torques

In this paper, we aim to present control of one axis gimbal system. Indeed, the purpose of using the model of predictive control is twofold. Firstly, it runs the stabilization loop. Stabilization loop is constructed with DC motor, Rate Gyro and inertia utilizing MPC type controller. The gimbal torque relationships are obtained from using Newton's second law equation on the assumption that gimbal is rigid body. The second purpose is to analyze the effects of flight dynamics on performance of one axis gimbal system. A set of scenarios' tests is performed to evaluate the act of the proposed system in various conditions, considering the gimbal friction, mass imbalance and disturbance torques. SIMULINK/MATLAB is administered to assess the entire control system. The simulation results are discussed to show the validity of the proposed system during the flight and show that the gimbal system stabilizes the line of sight even when the disturbance torques affect the system performance.