一种基于亮点模型的潜艇回波仿真方法

Submarine Echo Simulation Method Based on Highlight Model

研究潜艇回波建模优化问题,为了建立精确的潜艇回波模型,并提高仿真的运算速度,提出了一种直观、快速的潜艇回波仿真方法,采用亮点模型,根据潜艇的形状,把潜艇回波等效为亮点回波的叠加,并用等效面积法来计算潜艇各亮点的遮挡,在上述基础上建立回波模型,采用梯形单频信号作为鱼雷的主动声信号,进行了潜艇目标回波的仿真,仿真结果与目标回波的基本理论相符。改进方法运算速度快,能够满足工程上模拟鱼雷主动探测的实时性要求,具有重要的应用价值。

In order to establish the precise submarine target echo model, and improve the simulation speed of op- eration, an intuitive, easy submarine echo simulation method was presented. Based on the highlights of the model, according to the shape of the submarine, the method regarded that submarine echo is equivalent to highlight echo su- perimposed, and calculated the sheltered area of the submarine various highlights using the equivalent area method. And using trapezoid single frequency pulse signal as torpedo active acoustic signal, the submarine target echo was simulated. The simulation results are consistent with the basic theory of the target echo. The method has high simula- tion precision and fast operation speed, which can meet the engineering requirement of torpedo active detection real - time, and has important application value.