Tactical Missile Technology

Aiming to study the effect of PID controller on the characteristics of overload autopilot, the working principle and characteristics of the dual-loop overload autopilot with PID controller are analyzed. The analysis results show that the dual-loop overload autopilot with PID controller can statically stabilize unstable projectiles, and its steady-state output will not be affected for different aerodynamic parameters. Meanwhile,the autopilot has no steady-state error for the constant zero error input of the steering gear, while the classic overload autopilot produces steady-state error for the same zero error input of the steering gear. And comparing with the dual-loop autopilot with integral correction, the dual-loop autopilot with PID controller has a faster response speed. The simulation results show the validity of the theoretical analysis in this paper.