학술논문
Localization Method for Underwater Magnetic Sensors Based on the Optimization of Magnetic Field Gradients
Document Type
Periodical
Source
IEEE Sensors Journal IEEE Sensors J. Sensors Journal, IEEE. 24(10):15967-15974 May, 2024
Subject
Language
ISSN
1530-437X
1558-1748
2379-9153
1558-1748
2379-9153
Abstract
Key elements of the magnetic silencing facility are the magnetic sensor arrays at a ranging site, which directly influence the accuracy of magnetic field measurement. This article presents a localization method for underwater magnetic sensors based on the optimization of magnetic field gradients (MFGs). In this localization system, a dc current-carrying solenoid coil serves as a magnetic source and the sensors measure the magnetic field. Then, the relative positions of the magnetic source to the magnetic sensors change and a localization model is established. To improve the accuracy of the location, a strategy is proposed to optimize three teams of relative positions of the magnetic source to the magnetic sensors based on MFGs in the three directions of ${x}$ -, ${y}$ -, and ${z}$ -axes, respectively. A novel multiswarm particle swarm optimization method is applied to solve three components of the position vector. Experimental results show that the proposed method possesses preferable accuracy and engineering value.