Guidance Trajectory Analysis and Calculation for Active Acoustic Wake Homing Torpedo

The optimization of guidance trajectory for active acoustic wake homing torpedo is a key technology to reduce endurance loss and increase hit probability. This paper researches the guidance method of triple beams wake homing and analyzes the purpose of trajectory design, the mode of course adjustment, and the method for determining key parameters during three phases of torpedo trajectory of first wake entry, first wake exit and wake reentry. It also proposes the parameters and their formulae to describe the effect of trajectory optimization. The calculated results show that the proposed method can ensure less endurance loss and track accurately target.The method is expected to be used for the trajectory optimization design of active acoustic wake homing torpedo.