海洋测绘2025，Vol.45Issue(1)：11-15,5.DOI:10.3969/j.issn.1671-3044.2025.01.003
船载地磁三分量数据的非同步误差及其校正
The non-synchronous error of shipborne triaxial geomagnetic data and its correction
摘要
Abstract
In order to improve the measurement accuracy of the shipboard three-component geomagnetic measurement system,the research progress at home and abroad is summarized and analyzed,and the actual test of the research ship"Jiageng"is carried out.The response characteristics of the three components of geomagnetic field to the attitude change of the ship are analyzed in detail in theory and practice,and the regularity of synchronous fluctuation between them is revealed.The results show that there is a non-synchronous error between the geomagnetic three components and the ship attitude in the recorded data.Through synchronous registration and comprehensive error correction of the measured data,the north,east and vertical components of the correction ring and the outer coincidence root-mean-square errors of the total field are reduced by 2.89 nT,23.81 nT,145.03 nT and 19.07 nT,respectively.After the treatment,the total field and external RMS coincidence errors of the survey network are reduced from 17.75 nT and 25.58 nT to 12.91 nT and 18.85 nT.The synchronous registration and comprehensive error correction algorithms developed in this paper can effectively improve the processing accuracy of three-component geomagnetic survey data on low-cost Marine ships.关键词
海洋磁力测量/船载地磁三分量/惯导姿态/非同步误差/综合误差模型/同步配准Key words
marine magnetic survey/shipborne geomagnetic three-component/inertial navigation attitude/asynchronous error/synthetic error model/synchronous registration分类
天文与地球科学引用本文复制引用
樊新志,高金耀,贺惠忠,郭一栋,周普志..船载地磁三分量数据的非同步误差及其校正[J].海洋测绘,2025,45(1):11-15,5.基金项目
船载地磁三分量测量系统研制(GASI-01-YZ-CLY) （GASI-01-YZ-CLY）
水下考古探测关键技术研发(2020YFC1521700). （2020YFC1521700）
