基于方位距离的鱼雷目标声成像方法仿真研究

Simulation of Acoustical Imaging Method Based on Direction and Distance of Target

通过鱼雷自导系统提取目标的本质特征,构建目标的伪图像,确定目标的要害部位,达到最有效摧毁目标的目的。采用了正交解调、数字多波束的研究方法,得到了目标的方位和距离信息,在此基础上形成了基于方位距离鱼雷目标的伪图像,其成像原理新颖,成像算法易于实现。仿真研究表明,该方法可以获得良好的目标伪图像,为鱼雷识别目标的关键部位,并对其实施精确打击奠定技术基础。

Acoustic imaging method is an important branch in torpedo homing field. Real characteristics of target can be obtained for forming the pseudo profile of the target by torpedo homing system, and the crucial part of the target can be confLrmed in order to attack the target effectively. Quadrature demodulation, digital multi-beam forming method was used to acquire the direction and distance of the target, and the pseudo profile of the target could be formed on the base of the direction and distance of the target either, The acoustical imaging principle is simple and its algorithm is easy to implement. Simulation result shows that the pseudo profile of target can be better obtained by using this method, which lays a solid foundation for torpedo to attack the target effectively.