水下无人系统学报2026，Vol.34Issue(1)：37-46,10.DOI:10.11993/j.issn.2096-3920.2025-0083
基于工频磁特征的近岸海底电缆UAV航磁定位方法
Unmanned Aerial Vehicle Aeromagnetic Positioning Method for Nearshore Submarine Cables Based on Power Frequency Magnetic Characteristics
摘要
Abstract
Aiming at the technical bottleneck of high-precision detection and positioning of the"last mile"of nearshore submarine cables,this study proposed a comprehensive unmanned aerial vehicle(UAV)aeromagnetic detection method integrating the analysis of power frequency magnetic field characteristics.Firstly,a forward model of the power frequency magnetic field of submarine cables was established,and the propagation and attenuation law of the power frequency magnetic characteristic signal of the cables was revealed through numerical simulation.Secondly,an innovative frequency-domain signal extraction algorithm based on power frequency magnetic characteristics was constructed,effectively improving the recognition accuracy of weak magnetic signals in the background of strong environmental noise.Then,a reverse analytical positioning method combined with the geomagnetic direction was proposed to achieve the meter-level spatial inversion of the direction of submarine cables.The experiment adopted the self-developed ultra-low-altitude(flight altitude of 1 meter)rotorcraft UAV magnetic detection system to conduct actual measurement and verification in the coastal waters of Wenzhou City.The results show that the system effectively conducts aerial magnetic detection operations of power frequency magnetic characteristics under the complex terrain conditions of the intertidal zone.Through comparative analysis,it is found that the power frequency characteristic positioning method has significant advantages over the conventional magnetic anomaly positioning method in the nearshore shallow water area.Its positioning error does not exceed 1.8 meters,and it can accurately track the cable burial path.This research provides a new technical paradigm for the inspection and positioning of submarine cable projects.关键词
超低空航磁/海底电缆探测/旋翼无人机/工频磁特征Key words
ultra-low altitude aeromagnetism/submarine cable detection/rotorcraft unmanned aerial vehicle/power frequency magnetic characteristic分类
军事科技引用本文复制引用
孙运坤,李尤,曹向东,陈美,张雷,李明跃,赵杰,韩琦..基于工频磁特征的近岸海底电缆UAV航磁定位方法[J].水下无人系统学报,2026,34(1):37-46,10.基金项目
中国电建集团华东岩土勘测设计研究院有限公司科研基金项目资助(ZKY2024-HDYT-02-04). （ZKY2024-HDYT-02-04）
