面向水声对抗的宽带被动声纳信号仿真平台  

Underwater Acoustic Countermeasure Oriented Simulation Platform of Broadband Passive Sonar

作　　者：郑援[1] 胡成军[1] 

机构地区：[1]海军潜艇学院,山东青岛266071

出　　处：《计算机仿真》2010年第10期306-311,共6页Computer Simulation

摘　　要：水声对抗仿真系统中的声纳仿真台必须具备信号级仿真的能力,才能显示水声对抗的实际效果,针对平台声纳的水声对抗问题研究。为增加真实感和识别有效目标,设计并实现了一个宽带被动声纳信号仿真平台,通过信号产生、常规波束形成、波束功率积分和方位历程显示四个模块解决水声对抗的信号级仿真问题。信号产生模块根据水声对抗器材、水中目标的辐射噪声特征生成声源信号,并通过时延的信号合成,产生被动声纳各路水听器的接收信号;常规波束形成、波束功率积分和方位历程显示模块实现宽带被动声纳的信号处理及输出显示。仿真结果表明,平台实现了水声对抗的信号级仿真,能够支持水声对抗对宽带被动声纳干扰效果的研究,并具有良好的灵活性。Sonar simulator lies in the core of underwater acoustic countermeasure simulation system.In order to correctly display,evaluate and study the effects of various underwater acoustic countermeasure scenarios against platform sonar system,the sonar simulator has to have the signal level simulation capability.A broadband passive sonar simulation platform that we designed and implemented is given in this paper.The signal level simulation solution is discussed in detail.It consists of four sequential stages.The first stage is signal generation,where vessel targets＇ source signals and countermeasure equipments＇ radiated noises are generated at first according to their characteristics,then received acoustic signals for each hydrophone are generated based on time delay calculation.In the following conventional beamforming and beam power accumulation stages,sonar＇s signal processing function is simulated.Finally,the output is plotted on the bearing time history（BTH） display.Due to the adoption of such a modularized solution,the simulator is flexible and easily extendable.Simulation results demonstrate that the simulator is fully functional to support the study of underwater acoustic countermeasure＇s disturbance to passive acoustic detection at signal level.

关 键 词：水声对抗 宽带被动声纳 声干扰 信号仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]