声尾流自导鱼雷导引策略仿真与优化

Simulation and optimization of homing strategy for acoustic wake guide torpedo

在分析尾流几何模型及其气泡分布密度的规律的基础上,首先建立了较贴近实际的尾流声学仿真模型。其次,按照尾流自导检测流程,基于反射系数推导了尾流层及海面气泡层的回声级模型,由此建立了鱼雷声学自导检测模型。随后,根据研究需要设计了基于鱼雷作战使用评估理论的声尾流自导鱼雷仿真系统,该系统能够真实模拟尾流自导系统工作过程及鱼雷水下运动过程。最后,以该仿真系统为依托,实现了声尾流自导鱼雷应对空穴或断层的修正导引策略的仿真优化。应用结果表明:该研究对于尾流自导鱼雷导引策略优化和尾流自导仿真方法研究具有实际应用价值。

The acoustic simulation model of surface target ship wake was established based on the analysis of the wake geometrical model and its air bubble distribution density. Secondly, according to the wake guide system workflow, the echo level models for wake and sea surface were derived from the reflection ratio and then the model of homing detection for wake guide torpedo was constructed. Thirdly, based on the theory of operational effectiveness evaluation for torpedoes, the simulation sys- tem was designed for acoustic wake guide torpedoes. Finally, the dependence on simulation system can fulfill the optimization of homing strategy for the acoustic wake guide torpedoes coping with frac- ture zone or cavity. The result shows that the study is of much practical value to the optimization of homing strategy for acoustic wake guide torpedoes and the method of wake guidance simulation.