Fuzzy logic gain scheduling for flight control

Demonstrates the potential capabilities of fuzzy logic to augment the design of flight control systems for high performance aircraft. Specifically, the authors detail the procedure for developing a fuzzy logic gain scheduler for use over the full flight envelope. The fuzzy logic approach has been implemented and tested using a full-envelope nonlinear F/A-18 simulation. Comparisons are made with a conventional approach that uses numerical interpolation. Results demonstrate the feasibility and flexibility of the approach to provide adequate control performance across the flight envelope, outside the flight envelope, and in the presence of noisy air data measurements