Operational Application Method of Two-time Turning Angle for Acoustic Homing Torpedo

In the case of one-time turning angle operation mode of an acoustic homing torpedo, the Doppler velocity of the target does not reach the threshold of homing detection threshold as the torpedo is meeting the target, which leads to difficulty in detecting the target. This paper analyzes the target Doppler velocity and the torpedo homing detection threshold, then puts forward a two-time turning angle operation mode to satisfy torpedo homing detection, and establishes a model. The detection probabilities of an acoustic homing torpedo in one-time turning angle operation mode and improved two-time turning angle operation mode are solved by Monte Carlo method with consideration of target maneuvering. The results show that the improved two-time turning angle operation mode can improve the detection probability of an acoustic homing torpedo.