Magnetic Field Inversion Correction Method for Dynamic Detection of Ship's Magnetic Field

ZHOU Guohua; XIA Shuai; WU Kena; FENG Zhixiang; LING Zhi

doi:10.12382/bgxb.2024.1145

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Magnetic Field Inversion Correction Method for Dynamic Detection of Ship's Magnetic Field

更新时间：2026-04-24

- Magnetic Field Inversion Correction Method for Dynamic Detection of Ship's Magnetic Field
- Acta Armamentarii Vol. 47, Issue 1, Pages: 241145(2026)
- 作者机构：
  
  海军工程大学，湖北武汉 430033
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2024.1145
  CLC： TM153+.1
- Received：14 April 2025，
  
  Online First：11 February 2026，
  
  Published：31 January 2026
- 稿件说明：
移动端阅览
ZHOU Guohua, XIA Shuai, WU Kena, et al. Magnetic Field Inversion Correction Method for Dynamic Detection of Ship's Magnetic Field[J]. Acta Armamentarii, 2026, 47(1): 241145.
DOI：

ZHOU Guohua, XIA Shuai, WU Kena, et al. Magnetic Field Inversion Correction Method for Dynamic Detection of Ship's Magnetic Field[J]. Acta Armamentarii, 2026, 47(1): 241145. DOI： 10.12382/bgxb.2024.1145.

摘要

船舶磁场动态检测具有测量设备简单、隐蔽性好、建造成本低等优势，已成为世界各国海军争相发展的一种船舶磁场检测方式，但磁场动态检测过程中姿态等航行动态因素变化会导致较大的磁场测量误差。基于船舶磁场动态检测的基本原理，建立船舶磁场动态检测数学模型，据此详细模拟分析各动态因素对测量磁场的影响程度，并提出计及各动态因素影响的测量磁场反演校正方法，即通过动态测量多源数据构建船舶等效磁性反演校正模型，用Lasso回归求解，继而通过反演等效磁性参数实现动态测量过程的磁场数据校正。物理缩比模型实验结果表明，船舶在4个不同航行方向上的磁场动态测量中，当航向动态变化幅值为4°时，校正前的最大绝对误差为374 nT、相对误差不小于3. 44%，校正后磁场的最大绝对误差为146 nT、相对误差不超过2. 35%。新方法对提高船舶磁场动态检测准确度及推广应用具有很好的工程指导意义。

Abstract

As the dynamic detection of ship's magnetic fields has the advantages of simple measuring equipment

high-level concealment and low construction cost

it has become a ship's magnetic field detection method that is being actively developed by navies all over the world. However

the changes in the navigating dynamic factors such as attitude can lead to significant errors in the measurement of magnetic field during the process of magnetic field dynamic detection. A mathematical model for the dynamic detection of ship's magnetic fields is established based on the basic principles of the dynamic detection of ship's magnetic fields. The influences of various dynamic factors on the measured magnetic field are simulated and analyzed. in detail

and an inversion correction method that takes into account the influences of these dynamic factors is proposed for the measured magnetic field. An equivalent magnetic inversion correction model of ship is constructed by using multi-source dynamic measurement data

which is solved by Lasso regression. Subsequently

the magnetic field data in the dynamic measurement process is corrected by inverting the equivalent magnetic parameters. Physical scale model experiments show that the maximum absolute error before correction is 374 nT and the relative error is no less than 3. 44% when the amplitude of dynamic heading change is 4° in the dynamic measurement of the magnetic field in four different sailing directions of a ship. After correction

the maximum absolute error of magnetic field is 146 nT

and the relative error is no more than 2. 35%. This method has great engineering guiding significance for improving the accuracy and application scope of the dynamic detection of ship's magnetic fields.

关键词

Keywords

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