Simulation-based effectiveness analysis of acoustic countermeasure for ship formation

The acoustic countermeasures of a ship formation affect the survivability of all ships in the formation. In order to improve the capability of ship formation countering acoustic homing torpedoes, the effectiveness of acoustic countermeasure for a typical ship formation playing against multiple torpedoes are focused on. The combat environment and combat process are described. The movement models of torpedo, submarine and acoustic decoy are established. The countermeasure effectiveness of both maneuvering avoidance and acoustic decoys is simulated and analyzed. The influences of target bearing, ship span and torpedo homing range on countermeasure effectiveness are compared. The simulation result will provide support for the acoustic countermeasure of ship formation.