Gain scheduling controller for missile flight control problem by applying (LQR)

In recent years, particularly by increasing the importance of a missile defense technology and its application in various fields, many scientists have been attracted to this position. The actual model of a missile system is nonlinear, and the dynamical behaviors of nonlinear control systems are related to changes in the operating range. In this paper at first we used the Gain scheduling controller to control the flight model and then by applying the linear quadratic regulator (LQR), which is an optimal control method, the system response is studied. Because of high flexibility of quadratic function, use of the LQR has been increased. Here after applying the optimization method we found the under shoot in the result of system missed, thus the system stability is guaranteed.