A Magnetic Field Detection and Localization Scheme for Internet of Underwater Things

Abstract

The magnetic field whose intensity is changed by the magnetic permeability of the medium can be considered as a new underwater communication method. However, the magnetometer in the base station must compensate for the geomagnetic field to detect the underwater moving node for the communication and the localization. Therefore, this paper proposes a magnetic field detection and a localization scheme based on the exponential smoothing method. Simulation results show that the proposed scheme can extend the detection range and improve the localization accuracy by considering the trend of the geomagnetic field.