Comparison of backstepping, fuzzy-PID, and PID control techniques using X8 model in relation to A* path planning

The paper proposes a study of different control techniques e.g. Backstepping, Fuzzy-PID, and PID used along a predefined 2D path from the A∗ path planning algorithm. The control techniques were applied to an X8 quadcopter model and investigated upon by analyzing the RMSE of each output motion. Through the simulation comparison, Fuzzy-PID proves to be the superior performer with the lowest RMSE value for all six output motions amongst the three control techniques applied.