Modeling and Simulation of Cooperative Defense Against Wire-guided Torpedo with Rocket Assisted Noise-jammer and Hovering Depth Charge

We propose a torpedo defense tactic for a vessel cooperative defense against wire-guided torpedo with a rocket assisted noise-jammer and a hovering depth charge, named hard-kill and soft-kill anti-torpedo weapons. We simulate the board angle of guided submarine based on firing principle of wire-guided torpedo, establish a model of cooperative defense against submarine-launched wire-guided torpedo using a single rocket-assisted noise-jammer and a hovering depth charge, determine the deploying strategy of hard-kill and soft-kill anti-torpedo weapons and evading course of surface ship through the optimization method in operational research, and compare the success probabilities of the cooperative defense with hard-kill and soft-kill anti-torpedo weapons and the defense with single rocket-assisted noise-jammer via simulations. The results show that the proposed tactic can increase success probability by 20% ~36% compared with only using a rocket assisted noise-jammer.