Parametric uncertainty is the one of the challenging task in many dynamical systems. In this paper QFT based PID Controller is developed to improve the performance for a pitch control of uncertain aircraft system. The controller is designed based on the dynamic modeling of system begins with a derivation of suitable mathematical model to describe the longitudinal motion of an aircraft. Genetic Algorithm based QFT tuning mechanism is used to tune PID controller by selecting appropriate bounds and tracking specifications. A Comparative assessment based on time response specifications between Self-tuning fuzzy PID Controller, QFT Controller and GA based QFT Controller for an autopilot of longitudinal dynamic in pitch aircraft is investigated and analyzed.
pitch, flight control, PID, self-tuning fuzzy PID, QFT, GA based QFT
