A Three-dimensional Guidance Law with Impact Angle Constraints

At present, there are few studies on three-dimensional guidance laws with terminal angle constraints for maneuvering targets. Based on Lyapunov stability theory and considering the coupling effect of yaw channel and pitch channel, this paper designed a nonlinear three-dimensional guidance law, which is suitable for stationary target, constant moving target and maneuvering target, and meets the constraints of miss distance and terminal impact angle. The guidance law has the advantages of simple structure, few parameters and easy engineering implementation. The simulation results show that the proposed guidance law is effective in intercepting different targets at different attack angles, and the guidance law has higher accuracy and reliability than other guidance laws.