Abstract:With the gradual intelligence and informatization of weapons and equipment, the underwater presettechnology of weapon systems has become one of the important research contents in the future underwater unmannedcombat system. Taking the blockade operation as background, this article builds a multi-layer defensive front withunderwater preset anti-ship missiles to block off the strategic channel to strike the enemy. In this paper, using therelated theories of queuing theory, the total hit probability of underwater preset anti-ship missiles against theincoming ship formation is studied and its linear deployment optimization model is established. The effectiveness ofthe model is verified by simulation examples, and other factors affecting the optimization results are analyzed. The results show that the model can accurately find the optimal number of deployment layers and the number ofdeployments in each layer when the total hit probability is the highest. It can provide a certain scientific reference forthe deployment decision of the next underwater preset anti-ship missiles.