声诱饵回波模拟器仿真研究

Research on Simulation of Echo Simulator in Acoustic Decoy

随着水声技术的发展,水下武器对抗也日趋复杂。能够模拟目标回波的主动式声诱饵的出现,为对抗主动自导鱼雷及主动声纳提供了非常重要的帮助。着重对声诱饵的回波模拟器的作用机理进行了分析,然后给出了脉冲宽度、多普勒频移、时延与展宽、目标强度、最大回波强度等回波特征参数的估计方法,并对可以同时对抗声自导鱼雷和主动声纳的某声诱饵回波模拟器进行了仿真研究,并给出了仿真结果,对水声对抗技术研究有着重要的参考价值。

With the development of underwater acoustic technique, the underwater warfare becomes more and more complicated. The appearance of active acoustic decoy which can simulate target echo provides very important help to the countermeasure of active acoustic torpedo and active sonar. This paper first analyzes the principle of the echo simulator working in acoustic decoy, and then a method for estimating a series of echo characteristic parameters, such as the signal pulse width, doppler frequency shift, time delay and signal broadening, target strength and maximal echo intensity, is given. And an echo signal simulation result of echo simulator which can counterwork acoustic torpedo and active sonar at the same time is given. It provides a valuable reference for studying the technology of underwater acoustic countermeasure.