基于水声物理场的鱼雷制导半实物仿真方法及应用

Simulation Method and Application of Torpedo Homing System HWIL Simulation Based on Underwater Acoustic Field

由于鱼雷作战检测、目标分类与导引水声物理环境的复杂性,鱼雷制导系统半实物仿真成为实验室中鱼雷设计与评估性能的重要手段。给出了一种基于水声物理场模拟的制导半实物仿真系统构成方法及其工作原理,讨论了主要包括水声仿真模型、自导信号处理仿真系统设计、时变窄带水声信号实时生成等几个关键技术问题,同时给出了消声环境下尺度目标模拟的模型及方法,相应的半实物仿真试验结果证明该仿真方法在鱼雷制导系统仿真与测试试验中是有效的。

Because of the complexity of tactical environment in which the torpedo's homing system are working to detect and classify target, the torpedo homing system Hardware-In-the-Loop (HWIL) simulation has become a vital tool in developing and evaluating torpedo guidance performance in laboratory. The constitutions of the HWIL simulation system are given, and the working principles of the simulation system are introduced. Some key technologies of the system are discussed such as the models of the underwater acoustic environment, homing system signal processing simulation DSP system, and real-time time-varied narrow-band acoustic signal generating. The methods to simulate the target scale characteristic with a circular arc array placed in an anechoic pool are presented. The HWIL simulation result show that the method is effectively in torpedo homing system simulation and testing.