Twin-rotor MIMO system and its control using interval type-2 fuzzy logic

This manuscript presents the application of interval type-2 fuzzy logic sets for the control of a twin-rotor multiinput multi-output (MIMO) system (TRMS). As such, accurate tracking with robustness to structured/unstructured uncertainties is achieved. Unlike other control methodologies, no prior knowledge of the system dynamics and/or parameters is needed. Simulation results of different TRMS configurations illustrate the performance of the control scheme in transient and steady- state conditions. Furthermore, the proposed interval type-2 fuzzy control strategy is compared against its type-1 counterpart.