Experimental Study on Low-Frequency Characteristics of Typical Physical Fields for Small Underwater Vehicles

ZHOU Guangyuan; WEN Wudi; ZHANG Guanghua; TU Yifan

doi:10.11993/j.issn.2096-3920.2026-0056

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ZHOU Guangyuan, WEN Wudi, ZHANG Guanghua, TU Yifan. Experimental Study on Low-Frequency Characteristics of Typical Physical Fields for Small Underwater Vehicles[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2026-0056

Citation:

ZHOU Guangyuan, WEN Wudi, ZHANG Guanghua, TU Yifan. Experimental Study on Low-Frequency Characteristics of Typical Physical Fields for Small Underwater Vehicles[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2026-0056

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Experimental Study on Low-Frequency Characteristics of Typical Physical Fields for Small Underwater Vehicles

doi: 10.11993/j.issn.2096-3920.2026-0056

Naval University of Engineering, Wuhan 430000, China

Received Date: 2026-03-20
Accepted Date: 2026-05-14
Rev Recd Date: 2026-05-07

Available Online: 2026-05-19

Abstract

Abstract

Current research on underwater multi-physical field detection mostly focuses on large-scale targets such as ships and submarines, while little attention has been paid to joint multi-physical field detection for small underwater vehicles. To investigate the low-frequency characteristics and inter-field correlation of multi-physical fields within 100 Hz and below for small underwater vehicles, field tests were carried out in a shallow-water sheltered harbor. Signals of acoustic, electric, magnetic, pressure, seismic wave, and alternating magnetic fields were synchronously acquired. After data preprocessing and power frequency interference suppression, the time-domain passage characteristics and frequency-domain line spectrum features of each physical field were analyzed, and the coupling characteristics of multi-physical fields were discussed. The results show that the electric field and magnetic field exhibit strong correlation and common-source characteristics, and the alternating magnetic field contains richer target feature information. The frequency-domain characteristics of the acoustic field and seismic wave field are highly consistent, and the seismic wave field is significantly superior to the water pressure field in resisting marine environmental interference. This study analyzes the typical low-frequency multi-physical field characteristics and coupling laws of small underwater vehicles, which can provide experimental support for joint multi-physical field detection and recognition of underwater small targets.
- Small Underwater Vehicle,
- Low-Frequency Physical Field,
- Line Spectrum Characteristic,
- Multi-Physical Field Correlation,
- Track Correlation

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References(17)

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