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

作　　者：樊新志 高金耀 贺惠忠 郭一栋 周普志 FAN Xinzhi;GAO Jinyao;HE Huizhong;GUO Yidong;ZHOU Puzhi(Second Institute Of Oceanography,Ministry of Natural Resources,Hangzhou 310012;Key Laboratory of Submarine Geosciences,Ministry of Natural Resources,Hangzhou 310012;Key Laboratory of Marine Environmental Survey Technology and Application,Ministry of Natural Resources,Guangzhou 510300;Key Laboratory of Coastal and Island Development,Ministry of Education,School of Geography and Marine Science,Nanjing University,Nanjing 210000)

机构地区：[1]自然资源部第二海洋研究所,浙江杭州310012 [2]自然资源部海底科学重点实验室,浙江杭州310012 [3]自然资源部海洋环境探测技术与应用重点实验室,广东广州510300 [4]南京大学地理与海洋科学学院海岸与海岛开发教育部重点实验室,江苏南京210000

出　　处：《海洋测绘》2025年第1期11-15,共5页Hydrographic Surveying and Charting

基　　金：船载地磁三分量测量系统研制(GASI-01-YZ-CLY);水下考古探测关键技术研发(2020YFC1521700)。

摘　　要：为提高船载地磁三分量测量系统的测量精度,总结分析了国内外的研究进展,进行了“嘉庚”号科考船的实测实验,从理论和实践上详细分析了地磁三分量对船姿态变化的响应特性,揭示了它们之间波形同步起伏的规律性,从而证明实测记录数据存在地磁三分量与船姿态之间的非同步误差。通过对实测数据波形选取波峰波谷控制点进行同步配准和综合误差校正,处理后校正环的地磁北向、东向、垂向分量和总场的外符合均方根误差分别降低了2.89 nT、23.81 nT、145.03 nT和19.07 nT,处理后测网的地磁三分量合成总场内、外符合均方根误差达12.91 nT和18.85 nT。本文提出的同步配准和综合误差校正算法,有效提高了低成本海上船载地磁三分量测量数据的处理精度。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 

分 类 号：P229.24[天文地球—大地测量学与测量工程]