基于峰度特征的水下航行器声引信被动检测  

Passive detection of underwater vehicle acoustic fuze based on kurtosis characteristics

作　　者：李晋辉 张俊 LI Jinhui;ZHANG Jun(No.91889 Unit of PLA,Zhanjiang 524064,China;The 705 Research Institute of CSSC,Xi'an 710075,China)

机构地区：[1]中国人民解放军91889部队,广东湛江524064 [2]中国船舶集团有限公司第七〇五研究所,陕西西安710075

出　　处：《舰船科学技术》2024年第14期141-146,共6页Ship Science and Technology

摘　　要：针对水下航行器被动声引信接收目标辐射噪声的波形特点,分析水下航行器被动声引信所接收目标辐射噪声的峰度特征。计算实测环境噪声数据和目标辐射噪声数据的偏度、峰度,结果表明高速交会条件下,水下航行器被动声引信接收的目标辐射噪声具有明显的峰度特征。在此基础上,构造被动声引信峰度检测器,并经过动态实航试验对检测器的有效性进行验证,试验结果表明,目标辐射噪声峰度明显高于无目标时接收噪声峰度,可见在水下环境噪声背景下,短时峰度检测对目标辐射噪声具有良好的检测能力。Based on the waveform characteristics of target radiation noise received by passive acoustic fuses of underwater vehicles,the kurtosis characteristics of target radiation noise received by passive acoustic fuses of underwater vehicles were discussed.Skewness and kurtosis of measured environmental noise and target radiated noise are calculated.The results indicate that under high-speed intersection conditions,the target radiation noise received by the passive acoustic fuse of underwater vehicles has obvious kurtosis characteristics.On this basis,a passive acoustic fuse kurtosis detector is constructed,and its effectiveness is validated through sea experiments.The experimental results show that the kurtosis of target radiated noise is significantly higher than that of non-target radiated noise.It is evident that short-time kurtosis detection has excellent capability for target radiated noise detection in the background of underwater environmental noise.

关 键 词：被动声引信 水下航行器 峰度特征 

分 类 号：TB556[理学—物理]