海洋测绘2025，Vol.45Issue(5)：21-25,5.DOI:10.3969/j.issn.1671-3044.2025.05.005
基于无人艇海上地磁矢量场测量及精度分析
Measurement and accuracy analysis of marine geomagnetic vector field based on unmanned surface vehicles
摘要
Abstract
To verify the feasibility of measuring the geomagnetic vector field at sea using unmanned surface vehicles(USVs),a measurement experiment was conducted in coastal waters based on an independently developed geomagnetic vector measurement system and a measurement-type USV.Grid and repeated measurement lines were established,and effective measurement data were obtained.After processing the measurement data through carrier magnetic interference compensation,rotation of the geomagnetic vector coordinate system,and geomagnetic diurnal variation correction,the eastward,northward,vertical magnetic field components,and total magnetic field information in the geographic coordinate system were obtained.Following data filtering and survey network adjustment,accuracy evaluation was performed.The internal consistency accuracy of the three magnetic field components and the total field along repeated lines was better than 1.87 nT,2.74 nT,2.97 nT,and 1.50 nT,respectively,while the internal consistency accuracy at cross points was 1.48 nT,2.34 nT,1.67 nT,and 1.17 nT,respectively.This offshore experiment demonstrates that the independently developed USV and geomagnetic vector measurement system can be used for coastal geomagnetic measurements,obtaining high-precision geomagnetic vector field and total field information.关键词
地磁矢量场/无人艇/地磁测量系统/海上测量/精度评价Key words
geomagnetic vector field/unmanned surface vehicle/geomagnetic measurement system/marine survey/accuracy evaluation分类
天文与地球科学引用本文复制引用
罗建刚,李海兵,彭聪,李海虎,刘静晓..基于无人艇海上地磁矢量场测量及精度分析[J].海洋测绘,2025,45(5):21-25,5.基金项目
自然资源部海洋环境探测技术与应用重点实验室开放基金课题(MESTA-2022-A005) （MESTA-2022-A005）
崂山实验室科技创新项目(LSKJ202502100) （LSKJ202502100）
山东省重大科技创新工程专项(2018SDKJ0201). （2018SDKJ0201）
