A Semianalytical Heuristic Approach for Prediction of Eut's Multiple Dipole Model by Reducing the Number of Heuristics

A novel multiple dipole modeling (MDM) calculation scheme is proposed for prediction of the magnetic behavior of an equipment under test (EUT). The MDM calculation scheme is based on a semianalytical approach leading to less heuristics needed to be determined; thus, leading to a more efficient MDM determination. A genetic algorithm approach is adopted to minimize the root mean square error between the measured magnetic fields of the EUT and the MDM. To validate the proposed scheme and investigate its performance, numerous simulations have been employed. Simulation results regarding a mix of different EUT and the corresponding MDMs magnetic fields demonstrate the capability of the proposed scheme to optimally determine the MDMs and explore some topics about the measuring procedure of an EUT, depending on the distance and the number of the observation points. Furthermore, it is shown that the number of dipoles chosen to compose the MDM is of crucial importance.