Variable-structure backstepping guidance law with terminal angular constraint for video-guided penetrating bomb

Accounting for the requirement of the terminal angular constraint of video-guided penetration bomb, a guidance law based on variable-structure backstepping method was derived. Through computer simulation, the influence of the guidance law parameters on the guidance performance was discussed. The effect of the guidance law was tested under the conditions of different release method and expected impact angle. The result showed the effectiveness and robustness of the guidance law.