Trajectory Analysis and Dynamic Simulation for Acoustic Homing Torpedo Influenced by Marine Environment
Tian Wen-tong · Fire Control and Command Control · 2012
Aiming at acoustic detection bias of acoustic homing torpedo influenced marine environment,by making use of the comparative analysis and dynamic analysis methods and Argo data,the following topics in both search phase and self-directed phase of torpedo are investigated.The mechanism of marine environment impacting on torpedo's acoustic detection,the strategy of rectifying the bias of torpedo's sound ray tracing and their simulations.The results are shown as follows: in search phase,sea condition remarkably determines the time that the torpedo detects its target,while in self-directed phase,the exist of vertical temperature and salinity gradients generates the trajectory's bias,shortens the encounter time and the total distance,increases the maximum required overload,and the torpedo's final miss distance can be effectively decreased by taking the corresponding correction measures,thus improving its homing performance.