为解决水下集群多目标定位问题，提出一种基于多频率信标时延估计的多元阵定位方法，文中首先对多目标定位系统进行总体设计，随后开展了基于4元阵的定位原理研究，并且进行了系统的误差分析、目标测速方法研究；开展了基于Notch数字滤波器的多目标水声信号处理方法，该方法在FPGA嵌入式系统上运行，适合多通道的并行处理。最后通过水布垭湖上试验验证了系统的功能、性能指标。试验数据表明该系统可在4 km范围内对水下多目标进行实时定位跟踪。
In order to solve the problem of multi-target positioning in underwater vehicles, A multi array positioning method based on multi frequency beacon time delay estimation was proposed. The overall design of the multi-target positioning system was first introduced in the article, followed by the research on the positioning principle based on a 4-element array, and the systematic error analysis and target velocity measurement method research are carried out; This paper introduces a multi-target underwater acoustic signal processing method based on Notch digital filters, which runs on FPGA embedded systems and was suitable for multi-channel parallel processing. Finally, the functionality and performance indicators of the system were verified through experiments on Shuibuya Lake. The experimental data shows that the system can perform real-time positioning and tracking of multiple underwater targets within a certain water area.
2024,46(23): 122-126 收稿日期：2024-2-29
DOI：10.3404/j.issn.1672-7649.2024.23.020
分类号：TB565
作者简介：王浩(1982-),男,硕士,研究员,研究方向为水声定位
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