Simulation of Submarine′s Optimal Course After Using Noise Jammer to Elude Acoustic Homing Torpedo

After using noise jammer,submarine′s course relate to the effect of acoustic countermeasure against torpedo and the successful elusion probability of submarine.To enhance the elusion probability,we establish a model for torpedo′s snake search trajectory,analyze the influence of target strength and course of submarine on active sonar detection of torpedo after using noise jammer based on the principles of noise jammer and torpedo active sonar detection.Simulation results show that the optimal course varies sectionally with initial distance between submarine and torpedo, and the optimal board angle ranges from 110. to 130. .This result may offer a reference to the submarine maneuvering in acoustic countermeasure.