Location method of electromagnetic interference sources in geo-electric field observation

This paper proposes a surface dipole interference model and a location method by dynamic enumeration. This location method adopts interference amplitude and location of different measuring electrodes to calculate location of the dipole source based on a uniform current field and a point source model. And then some simulation results are also presented. Furthermore, taking the test data of artificial interference sources experiment in Gaoyou seismic station as an example, the interference sources are located within 30 meters by this method, verifying the validity and feasibility of the model and the algorithm. The present research will provide an effective method for locating the leakage interference sources around geo-electric observation stations.