Modeling and Simulation for Gliding Missile with Large Aspect Ratio

An improved STT （skid to turn） autopilot was developed to solve the problem of roll control saturation for the gliding missile with large aspect ratio. A lateral acceleration feedback was introduced in the roll channel of the autopilot to ensure that the roll angle could closely follow the lateral acceleration, so that the sideslip angle and the roll rudder deflec- tion could be reduced, and the roll control saturation was avoided. A six-DOF （ degree of freedom） nonlinear simulation model was set up. The simulation results indicate that the model and the control scheme are effective.