Simulation of Convoy Warship Formation Defending Against Acoustic Homing Torpedo with Rocket Assisted Acoustic Decoy

To address a convoy warship formation defending against an acoustic homing torpedo, the process of single warship trapping an incoming torpedo by using a rocket assisted acoustic decoy is analyzed, consequently a mathe- matical model about an acoustic homing torpedo attacking a warship formation and a rocket assisted acoustic decoy trapping an incoming torpedo is established. The tracking trajectory of the torpedo in attacking a warship formation is simulated, and the processes of trapping a torpedo by the decoys from different convoy warships are analyzed. As a re-sult, some torpedo postures with which the torpedo can successfully hit the warship formation are obtained, and the best launching position of the decoy for effectively protesting the formation in a typical situation is achieved.