水声对抗中的频响反演法声调控分析

Analysis of Acoustic Control by Frequency Response Inversion Method in Underwater Acoustic Countermeasures

声调控通过调节水声信号的频谱特性实现对探测声呐的诱骗和压制,是水声对抗的关键环节。论文基于控制理论基本原理,提出一种可用于声调控的频响反演法。以运用铝合金柱壳获得宽频均匀谱为例,在COMSOL环境中对频响反演法声调控实施过程进行了演示。剖析了频响反演法声调控在水声对抗中的三种典型运用,分别是模拟目标辐射特征以诱骗被动声呐探测系统、掩盖目标辐射特性以压制被动声呐探测系统、掩盖目标反射特性以压制主动声呐探测系统。研究表明,论文提出的频响反演法声调控可有效诱骗和压制被动声呐,并对主动声呐具备压制效果,可在一定程度上满足水声对抗需求。

Acoustic control can induce and suppress sonar by adjusting the spectral characteristics of underwater acoustic sig⁃nal,which is the key link of underwater acoustic countermeasures.Based on the basic principle of control theory,a frequency re⁃sponse inversion method for acoustic control is proposed in this paper.Taking the application of aluminum alloy column shell to ob⁃tain broadband uniform spectrum as an example,the implementation process of frequency response inversion method for acoustic control is simulated in COMSOL environment.Three typical applications of acoustic control by frequency response inversion method in underwater acoustic countermeasures are analyzed,which are to deceive passive sonar detection system by simulating to radiation characteristics of target,to suppress passive sonar detection system by covering radiation characteristic of target,and to suppress passive sonar detection system by covering reflection characteristic of target.The results show that the frequency response inversion method can effectively deceive passive sonars and suppress passive and active sonars,which can meet the requirements of underwa⁃ter acoustic countermeasures to a certain extent.