Design and comparison of classical topologies for static unstable missile autopilots

The characteristics and benefit of applying relaxed static stability technology on missile flight performance were presented. The transform technologies both of engineering index into the desired system poles and state feedback into output feedback were analyzed. Based on optimization and output feedback, a general design methodology for multiple topologies of autopilots was proposed. The analysis is accomplished by establishing a standard algorithm for different autopilot topologies. Anyone of the two- and three-loop autopilots can stabilize a static unstable missile. However, the finite resource of actuator is the crucial factor for autopilot control effect.