Attitude Tracking Control of Launcher with Structural Misalignment Based on Fully-Actuated System Approach

This paper tackles the attitude tracking control problem of a launcher subject to structural uncertainty during orbit injection. By doing so, a nonlinear attitude dynamics is firstly formulated. The system uncertainties mainly caused by structural uncertainty is considered and then handled by introducing Neumann Series. Afterwards, a nonlinear control scheme is proposed, composed of a feedforward compensator and feedback controller. The feedback gain matrices are designed by fully-actuated system approach to ensure a comprehensively satisfactory performance. At last, numerical simulation verifies the effectiveness of the proposed control scheme.