Aircraft pitch control design using LQG controller based on genetic algorithm

The simulation results reveal the ability of the optimized GA_LQG controller to reject the effect of the noises in the aircraft system dynamic and achieve a good and stable tracking performance compared with that of the conventional LQG pitch control system. 1. INTRODUCTION During the last decades, the performance of self-propelled aircraft systems, which were established by Wright brothers at 1903, have been improved due to the fast development in flight aerodynamics and fabrication technology of light weight motors and propellers beside design robust flight control systems. [...]the performance of the controllers is not assessed under action of working disturbances. [...]manual tuning has been used to tune the gain parameters of the controllers using the trial-and-error method, which does not guarantee producing best output response. The tuning process is achieved using trial and error method, which consumes effort, takes too much time and does not guarantee achieving optimum response. [...]most of the presented researches did not take into consideration acting of the disturbances noises on the aircraft's plant.