“…One of these control problems is the control of guided missiles; where the aerodynamics flight parameters are continuously changing. There are many researches done using robust control techniques, H-infinity control and robust control (Lungu and Lungu, 2014;Hui et al, 2014;Kaur and Ohri, 2014;Roy and Barai, 2013;Ouda, 2017), nominal operating point selection (Schultz et al, 2016), and hardware-in-the-loop (Hadi and Bambang, 2015;Hashemi and Montazeri, 2014;Louali et al, 2017) in order to enhance the performance of the guided missile system for example. Mohammadi et al (2016) investigated an independent design for a roll channel autopilot in order to eliminate the effects of the induced and control cross coupling roll moments.…”