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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Self-Contained High-SNR Underwater Acoustic Signal Acquisition Node and Synchronization Sampling Method for Multiple Distributed Nodes
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Self-Contained High-SNR Underwater Acoustic Signal Acquisition Node and Synchronization Sampling Method for Multiple Distributed Nodes

机译：自包含的高SNR水下声信号采集节点和多个分布式节点的同步采样方法

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摘要

Aiming at the application demand in underwater noise monitoring, observation of marine animal, antisubmarine and underwater target localization, a high-SNR underwater acoustic signal acquisition (UASA) node that combines a self-contained acquisition system and floating platform is designed to improve the acquisition performance of a single UASA node, and a high-accuracy synchronization sampling method among multiple distributed UASA nodes based on master-slave dual phase-locked loops (MSDPLL) is proposed to improve the synchronization sampling accuracy. According to the equivalent model of hydrophone and application requirements, low noise signal conditioning circuit and large-capacity data storage modules are designed. Based on the long-term monitoring requirements for underwater acoustic signal and distributed positioning requirements for underwater targets, the structure of a single UASA node is designed and MSDPLL is developed for high-accuracy synchronization sampling among multiple UASA nodes. Related experimental results verified the performance of the UASA node and the synchronization sampling method.
机译：针对水下噪声监测，海洋动物观察，反潜和水下目标定位的应用需求，设计了结合自包含采集系统和浮动平台的高信噪比水下声信号采集（UASA）节点，以提高采集效率。为了提高同步采样的准确性，提出了一种基于主从双锁相环（MSDPLL）的高精度分布式UASA节点间同步采样方法。根据水听器的等效模型和应用要求，设计了低噪声信号调理电路和大容量数据存储模块。根据对水下声信号的长期监视要求和对水下目标的分布式定位要求，设计了单个UASA节点的结构，并开发了MSDPLL以在多个UASA节点之间进行高精度同步采样。相关实验结果验证了UASA节点的性能和同步采样方法。

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