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地电场异常变化是地震前兆观测中的一个重要研究方向.我国地震台站地电场观测资料经常受到各类干扰的影响,人为漏电亦是一种常见干扰.本工作通过构建漏电偶极源二维地电场模型,正演偶极源对观测电极产生的电位差比例系数,采用牛顿迭代算法,实现漏电位置的精确求解.在模型基础上,进行模拟位置漏电及台站实际漏电实验,分别对反演算法进行测试.测试结果表明:基于牛顿迭代的地电场人为漏电反演算法,无论是在模拟实验还是台站的实测检验中,均能实现对漏电干扰源的有效定位,且算法收敛快速稳定.地电场人为漏电干扰源定位可执行程序可通过邮件向作者获取.
The anomalous change of geoelectric field is an important research direction in the observation of earthquake precursors.The observation data of geoelectric field in China’s seismic stations are often affected by all kinds of disturbances and artificial leakage is also a common disturbance.In this work, Earth electric field model and forward dipole source to the potential difference ratio of observation electrode, Newton iterative algorithm is used to solve the exact location of the leakage current.On the basis of the model, the simulation of position leakage and station actual leakage test are carried out, Algorithm.The test results show that the artificial earth leakage inversion algorithm based on Newton iteration can effectively locate the source of leakage current both in the simulation experiment and the station test and the algorithm converges quickly and steadily Earth electric power artificial leakage positioning source executable program can be obtained by mail to the author.