Modeling and Simulation of Combination of Acoustical Countermeasure Equipments in Anti-torpedo

According to the course of airdropped lighted torpedo to attack submarine,the models of noise jammer,self-propelled acoustical decoy,torpedo and submarine in acoustical warfare were built.Furthermore a typical anti-torpedo counterplan was discussed.On this basis,a novel counterplan was brought forward,that is,to use two self-propelled acoustical decoys to seduce the torpedo to run after.Simulations were made to analyze the effect of the release time and course of the second decoy,and that of submarine's second evasion on submarine's survivability probability.The simulation results show that the novel counterplan can improve the countermeasure efficiency significantly.It is of practical guiding significance for submarine to properly use countermeasure equipments to fight against the torpedo.