Inversion approach to predicting the magnetic field distribution based on planar field measurements

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Zhou, Guohua^{a; *} | Xiao, Changhan^a | Liu, Shengdao^a | Liu, Daming^a

Affiliations: [a] Naval University of Engineering, 717 Jiefang Road, 430033 Wuhan, China

Correspondence: [*] Corresponding author: Guohua Zhou, E-mail: dandanqibing@yahoo.com.cn

Abstract: Our goal is to obtain the magnetic field distribution below ferromagnetic hull ships based on planar field measurements. A magnetic inverse model based on equivalent magnetic surface charge was presented to extrapolate the magnetic field at different depths below ferromagnetic hull ships. In order to improve the robustness of the magnetic inverse model, regularization methods were applied to solve the inverse problem. It is shown by a numerical example and a mock-up experiment that the proposed method is satisfying in modeling of ferromagnetic hull magnetism.

Keywords: Magnetic field extrapolation, magnetic surface charge, inverse problem, regularization method

DOI: 10.3233/JAE-2010-1217

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1033-1040, 2010