为对水下近场目标进行定位和识别,设计了一种小型水下近场目标声探测系统。该系统采用水听器十字阵对目标进行被动方位估计和主动声纳测距相结合的工作方式。为验证声纳探测系统设计的可行性,设计了一个水下目标方位估计的水池实验,该实验系统利用LabVIEW便捷的数据采集和存储功能及MATLAB对算法的强大仿真能力,方便地实现了对水声信号的采集和分析。这种探测系统的设计可为水听器布阵和相关算法的选择提供参考。
Abstract
Aiming at underwater near-field target localization and recognition, a small-sized underwater near-field target acoustic detection system was designed. The system adopts the operation mode that active ranging sonar techniques and target passive DOA estimation using cross array. In order to validate the feasibility of the sonar system design, a set of water-tank experimental scheme is designed for the direction finding of underwater target. The purpose of the experiment is to realize underwater acoustic signal acquisition and processing conveniently by means of LabVIEW and MATLAB. The former is easy to data gathering and saving function, and the latter possess powerful simulation of algorithms. The experimental results offer reference for suitable types of arrays and related algorithms selection.
关键词
计量学 /
声探测系统 /
水下近场目标 /
十字阵 /
仿真实验
Key words
Metrology /
Acoustic detection system;Underwater near-field target /
Cross-shaped array /
Simulation experimental
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