Design and simulation of an optimal guidance law for ship-air missile based on interception point prediction

For the case of ship-air missile intercepting the low target beyond visual range by ship-ship coordination, the instruction solution model was presented and an optimal guidance law was designed considering the effect of the curvature of the earth. In the midcourse and terminal guidance segment, applying the concept of the pseudo control variable and the theory of the linear quadratic optimal control, the optimal guidance law was designed based on interception point prediction. The information of the target was described in the launch coordinates through coordinate transformation to realize the instruction solution for the designed guidance law. The simulation results show that the model of the instruction solution is correct and the designed guidance law is feasible.