06.1 - Flight Dynamics and Control (Control & Modelling)A COMPARISON BETWEEN UNIVERSAL INTEGRAL REGULATOR AND LINEAR QUADRATIC TECHNIQUE FOR AN AIRCRAFT AUTOPILOTY.A. Díaz-Méndez¹, M.S. Sousa¹, S.S. Cunha Jr.¹, G.F. Gomes¹; ¹Federal University of Itajubá, Brazil This paper considers a comparative assessment based on time response performance between a robust nonlinear control technique Universal Integral Regulator (UIR) and the modern linear technique Linear Quadratic Regulator (LQR) for the altitude and velocity tracking control of a nonlinear aircraft model. the performance of the aircraft autopilots is investigated and analyzed based on common criteria and using some wind turbulence models conclusions about robustness will be done |