An Improved Two-Point Magnetic Target Localization Method

This study addresses the existing limitations of methods for determining the location of magnetic targets. Traditional methods either require geomagnetic background field information or fail to obtain stable solutions in specific cases due to matrix inversion when geomagnetic background field is not required. In order to solve this problem, this paper first adopts a new sensor array, then rewrite the equation of its method, and then uses the least squares method (LMS) to solve the magnetic target position, solve the possible instability problem in the process of single point solution and finally achieve the magnetic target positioning. Simulation results show that the method can accurately and uniquely determine the position of a magnetic dipole in the presence of a geomagnetic field, while experimental results verify the superiority and practicality of the method.