An improved composite ship magnetic field model with ellipsoid …
2024年2月19日 · In order to simultaneously maintain the ship magnetic field modeling accuracy, reduce the number of coefficient matrix conditions and the model computational complexity, an …
基于磁偶极子的舰船轴频电磁场场源建模与试验验证
2016年5月14日 · 摘要: 根据舰艇水下腐蚀相关轴频电磁场的产生机理，提出了以电流环与磁偶极子等效性为线索，对舰艇轴频电磁场场源进行磁偶极子建模，并给出电流环的3种近似形状及环 …
Far-field characteristics and evolutions of electromagnetic field ...
2024年4月1日 · The coupling between the fluid flow field and magnetic field can be understood on the basis of two fundamental effects: the induction of electric current due to the movement of …
An analytical four-layer horizontal electric current dipole model …
2022年5月24日 · Along with magnetic anomalies and hydrodynamic variations detected in the presence of the ship, the static electric component of the electric field is one of physical fields …
(PDF) ELECTRIC AND MAGNETIC FIELD MEASUREMENTS FROM A SHIP …
2016年6月15日 · The paper analyses the results of performed measurements regarding the density of electromagnetic power at various points on board a ship, the noise level determined …
Methods of Measuring the Low-Frequency Electric and Magnetic Fields …
2017年3月1日 · Methods of recording low-frequency electric and magnetic fields in an aqueous medium, generated by ships and other moving objects, are considered. The history of the …
Numerical Simulation and Analysis of Electromagnetic Fields
2020年11月15日 · In this paper, we present a numerical simulation method of electromagnetic (EM) fields induced by a moving ship (EMFMS), which consist of both the shaft-rate EM field …
multifunctional data-measuring system for recording low-frequency electric and magnetic fields of ships and submarines, which enables three components of the electric field, three components …
SHIP TARGET TRACKING USING UNDERWATER ELECTRIC FIELD
First, the equivalent electric field model based on point-electrodes methods is studied. Second, the equivalent electric field model of a scaled ship is used as the electric field source, and …
Measurement of the extremely low frequency (ELF) magnetic field ...
2011年7月15日 · The electromagnetic (EM) fields radiating from a ship are widely recognized as important components of underwater detection. Galvanic currents flowing in the water around …