The time series data with multiple frequencies which are collected by using audio frequency magnetotelluric method (AMT) often contain interference signals. After a lot of measured time series data viewed, we have found that the data are seriously interfered by adjacent source, but the interference signal appearance is not continuous. According to the features of the interference signal and the analysis result of original data format of V5-2000 magnetotelluric instrument, the author proposed a method for automatic selection of time series data. Real data processing results in Ningwu area show that this method can partly suppress the adjacent source interference.
王刚, 王书民, 朱威, 张振宇, 姚大为, 李永博. AMT近源干扰压制方法[J]. 物探与化探, 2015, 39(2): 371-375.
WANG Gang, WANG Shu-Min, ZHU Wei, ZHANG Zhen-Yu, YAO Da-Wei, LI Yong-Bo. Method of suppressing the adjacent source interference in AMT. Geophysical and Geochemical Exploration, 2015, 39(2): 371-375.