Analysis of maneuver occupying angle of submarine launching anti-torpedo torpedo

Anti-submarine torpedo(short for ATT) is the main threat to modern submarine, and hard killing means of anti torpedo is still the difficult point of research. Because of the poor maneuvering ability of submarine, the ATT should maneuver to the best attack position after exit the launching tube while in use of intercepting coming torpedoes, in order to ensure the maximum capture probability of ATT. The space motion equation of the ATT and the final self guidance equation for the coming torpedo are established. The space trajectory of ATT is solved piecewise by numerical solution, the optimal advance angle of the ATT under the current motion state is solved dynamically at every point of the maneuverable turn. When the speed direction of the ATT is the same as that of the best shot advance angle, it is considered that the ATT finished occupancy. The solution can be issued as the best shooting position for ATT. The best shooting point was simulated by solving the different shooting conditions of ATT relate to the homing system parameters, the azimuth of the coming torpedo and the maneuver form of the submarine, The best shooting position of ATT in different firing conditions is obtained.