The Largest Launching Range Design with Genetic Algorithm and PID Controller

The longest launching range is a very important index for the ground test of missile, which need optimal methods to design multi-disciplines such as engine, aerodynamic and control synchronously. Firstly, supposed that parameters of aerodynamic and engine have been fixed, so short periodic flight quality is analyzed according to flight equations, and root locus method is used to design controller parameters of missile. Secondly, genetic algorithm (GA) is utilized to optimize pitch angle command. Lastly, different launching ranges due to different disturbances are analyzed with simulation results, and the most distinct influence is pointed out at different flight stages, so dynamic analysis of missile can be achieved.