鱼雷声自导检测目标过程的建模与实时仿真

在研究某型声自导鱼雷自导弹道仿真时，对鱼雷声自导检测目标的过程进行建模与仿真：应用牛顿迭代法求解自导作用距离，给出了迭代初值的域及选取原则；考虑声线传播受特定海域海水盐、温、压力梯度等因素影响，采用折线近似法计算自导接收声束空间范围。依此进行仿真建模，利用WISE仿真软件及Visual C 编制仿真应用程序，并利用Vega视景仿真软件实现弹道仿真数据的三维町视化。结果表明上述方法在鱼雷声自导弹道实时仿真中是可行和有效的。

Modeling and Real-time Simulation of Torpedo Acoustic Homing Process

For simulation of a real model torpedo' s acoustic homing trajectory, the modeling and simulation of torpedo acoustic process have been studied. The Newton iterative method is presented to calculate homing range. The choice principal of initial value is provided. And the ray tracing is approximated by broken line to describe ray diagram distorted by salinity temperature and pressure in given sea area. Based on the computing methods above, a real - time 3D torpedo acoustic homing trajectory simulation software has been designed by using WISE, Visual C + + and Vega. The results show that the simulating method is feasible and credible.