自航式声诱饵声学特性研究  

Acoustics Property of Mobile Acoustic Decoy

作　　者：何心怡[1] 肖昌美[1] 张驰[1] 

机构地区：[1]海军装备研究院,北京100073

出　　处：《鱼雷技术》2007年第2期38-41,共4页Torpedo Technology

摘　　要：根据自航式声诱饵的声学模拟机理,建立了自航式声诱饵的辐射噪声特性模拟模型和声反射特性模拟模型,深入分析了自航式声诱饵和潜艇的声学特性差异,主要有三点:1)指向性差异:潜艇辐射噪声的指向性近似于各向同性,而诱饵模拟辐射噪声的指向性取决于发射换能器的发射指向性;2)目标强度差异:潜艇目标强度随声波入射角度的变化而变化,而诱饵模拟的目标强度取决于发射换能器的发射指向性;3)尺度差异:诱饵模拟的尺度特性与潜艇的尺度特性是有差别的。文中指出了对抗自航式声诱饵的几点研究方向:利用诱饵模拟的辐射噪声与潜艇辐射噪声在指向性上的差异以及诱饵模拟与潜艇的尺度特性差异作为对抗自航式声诱饵的突破点。文中内容对于水声反对抗具有一定参考意义。According to the acoustic simulation mechanism of mobile acoustic decoy, this paper establishes a simulation model of the radiated noise property of mobile acoustic decoy and a simulation model of sound reflection. It analyzes three differences of acoustic characteristics between mobile acoustic decoy and submarine ： 1 ） directivity difference, i. e. the directivity of radiated noise of submarine borders on isotropy while the directivity of the simulated radiated noise of decov lies on the emissive directivity of transmitting transducer; 2） target strength difference, i. e. the target strength of submarine changes following the incident angle of sound wave, while the simulated target strength of decoy lies on the emissive directivity of transmitting transducer; 3） dimension difference, i. e. the dimensional characteristic of decoy differs from that of submarine. It is suggested to make use of the directivity difference between simulated radiated noise of decoy and radiated noise of submarine and the difference between di- mensional characteristics of decoy and submarine to counter against mobile acoustic decoy.

关 键 词：自航式声诱饵 辐射噪声 声反射 水声反对抗 

分 类 号：TN973.3[电子电信—信号与信息处理] TJ630.3[电子电信—信息与通信工程]