ICNPAA 2010: Mathematical Problems in
Engineering, Aerospace and Sciences

In the present paper, a new approach is performed to optimize the tuning of PID controller in missile control system. In fact, the behavior of an aerospace vehicle, such as a missile can be described with a set of non-linear differential equations by assuming six degrees of freedom (three ones for linear motions and the rest for angular motions) around x, y and z axises. Regarding this complexity, designing an effective controller in missiles has been one of the most challenging subjects in optimal control context. On the other hand, the recent optimization methods in parameters tuning of the PID controllers have converted it into one of the most useful methods in missile designing. Here, the PSO algorithm which is one of the most powerful tools in the field of global optimization used for a various range of problems is successfully applied for longitudinal axis control of a missile using MATLAB simulation for optimal tuning of PID controller.  At the end, the results of simulations are visualized in figures. Accordingly, the overall system performance has been considerably enhanced due to this new methodology.