Movement model and design of variable structure attitude control system for low speed spinning ballistic missiles

The spin is a new method for ballistic missile's penetration. It can reduce the dwell time of the beam on a particular point of the missile and counter laser antimissile effectively that ballistic missile makes a flight in spinning during the first booster phase. The missile spinning can lead to the couplings of control, inertia and aerodynamics, especially the control mode based on composite of force vectors makes pitch and yaw movements interact. Thrust vector control mode and movement model of spinning ballistic missile were proposed. A robust variable structure attitude control system was designed, and some useful conclusions were drawn.