A nonlinear suboptimal guidance law with impact angle constraint

A suboptimal guidance law with impact angle constraint is proposed based on the model predictive static programming (MPSP). The theory of MPSP was introduced, and the algorithm process of suboptimal guidance law with terminal constraints was derived, which is based on nonlinear model in the vertical plane. Then the influence of initial guess history was discussed. The simulation results verified the effectiveness of the proposed guidance law, and it is also noticed that the initial value has great influence on the acceleration.