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.
2024,46(14): 141-146 收稿日期：2024-02-08
DOI：10.3404/j.issn.1672-7649.2024.14.023
分类号：TB556
作者简介：李晋辉(1969-),男,高级工程师,研究方向为水中武器作战应用
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