Simulation Analysis of Countermeasure Effect of Noise Jammer in Submarine on Active Acoustic Homing Torpedo

Aiming at the interferences with and without noise jammer,this paper established a detect model for active acoustic homing torpedo based on the active sonar equation,obtained the detect ranges of torpedo active acoustic homing under the different sea states, submarine board angles and torpedo running depths.Then the law of the detect distance of torpedo active acoustic homing and the effect of noise jammer varying with sea state,submarine board angle and torpedo running depth are analyzed taking the average reduced-quantity and the average reduced-rate of torpedo homing detect range as criteria.The acoustic countermeasure (ACM) effect of noise jammer is evaluated through computer simulation.The simulation results could be helpful in submarine tactics research on the use of noise jammer to counter active homing torpedo.