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水下地震波系统的设计与数据分析

The Design and Data Analysis of an Underwater Seismic Wave System.

作者信息

Xiao Dawei, Zhu Qin, Zhang Jingzhuo, Xie Taotao, Ji Qing

机构信息

Naval University of Engineering, Wuhan 430033, China.

出版信息

Sensors (Basel). 2025 Jul 3;25(13):4155. doi: 10.3390/s25134155.

DOI:10.3390/s25134155
PMID:40648408
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12252146/
Abstract

Ship seismic wave signals represent one of the most critical physical field characteristics of vessels. To achieve the high-precision detection of ship seismic wave field signals in marine environments, an underwater seismic wave signal detection system was designed. The system adopts a three-stage architecture consisting of watertight instrument housing, a communication circuit, and a buoy to realize high-capacity real-time data transmissions. The host computer performs the collaborative optimization of multi-modal hardware architecture and adaptive signal processing algorithms, enabling the detection of ship targets in oceanic environments. Through verification in a water tank and sea trials, the system successfully measured seismic wave signals. An improved ALE-LOFAR (Adaptive Line Enhancer-Low-Frequency Analysis) joint framework, combined with DEMON (Demodulation of Envelope Modulation) demodulation technology, was proposed to conduct the spectral feature analysis of ship seismic wave signals, yielding the low-frequency signal characteristics of vessels. This scheme provides an important method for the covert monitoring of shallow-sea targets, providing early warnings of illegal fishing and ensuring underwater security.

摘要

舰船地震波信号是舰船最重要的物理场特征之一。为实现海洋环境中舰船地震波场信号的高精度探测，设计了一种水下地震波信号探测系统。该系统采用由水密仪器外壳、通信电路和浮标组成的三级架构，以实现大容量实时数据传输。主机对多模态硬件架构和自适应信号处理算法进行协同优化，从而能够探测海洋环境中的舰船目标。通过水箱验证和海上试验，该系统成功测量了地震波信号。提出了一种改进的ALE-LOFAR（自适应线增强器-低频分析）联合框架，并结合DEMON（包络调制解调）解调技术，对舰船地震波信号进行频谱特征分析，得出舰船的低频信号特征。该方案为浅海目标的隐蔽监测提供了一种重要方法，可为非法捕捞提供预警并确保水下安全。

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本文引用的文献

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Pankun: A New Generation of Broadband Ocean Bottom Seismograph.潘鲲：新一代宽频带海洋地震仪。
Sensors (Basel). 2023 May 23;23(11):4995. doi: 10.3390/s23114995.
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