典型文献
Static-shift suppression and anti-interference signal processing for CSAMT based on Guided Image Filtering
文献摘要：
Shallow conductive heterogeneity can lead to static shifts ain the apparent resistivity sounding curve of controlled-source audio-frequency magnetotellurics (CSAMT). The static effect will shift the apparent resistivity curves along with axial log-log coordinates. Such an effect, if not properly processed, can distort the resistivity of rock formation and the depth of interfaces, and even make the geological structures unrecognizable. In this paper, we discuss the reasons and characteristics of the static shift and summarize the previous studies regarding static shift correction. Then, we propose the Guided Image Filtering algorithm to suppress static shifts in CSAMT. In detail, we use the multi-window superposition method to superimpose 1D signals into a 2D matrix image, which is subsequently processed with Guided Image Filtering. In the synthetic model study and field examples, the Guided Image Filtering algorithm has effectively corrected and suppressed static shifts, and finally improved the precision of data interpretation.
文献关键词：
中图分类号：
作者姓名：
Enhua Jiang;Rujun Chen;Debin Zhu;Weiqiang Liu;Regean Pitiya
作者机构：
School of Geoscience and Info-physics,Central South University,Changsha,410083,China;College of Geophysics,China University of Petroleum-Beijing (CUP),Beijing,102249,China
文献出处：
引用格式：
[1]Enhua Jiang;Rujun Chen;Debin Zhu;Weiqiang Liu;Regean Pitiya-.Static-shift suppression and anti-interference signal processing for CSAMT based on Guided Image Filtering)[J].地震研究进展（英文）,2022(01):44-55
A类：
ain,magnetotellurics,unrecognizable,superimpose
B类：
Static,suppression,anti,interference,processing,CSAMT,Guided,Image,Filtering,Shallow,conductive,heterogeneity,can,lead,static,shifts,apparent,resistivity,sounding,controlled,source,audio,frequency,will,curves,along,axial,coordinates,Such,not,properly,processed,distort,rock,formation,depth,interfaces,even,make,geological,structures,In,this,paper,we,discuss,reasons,characteristics,summarize,previous,studies,regarding,correction,Then,propose,algorithm,detail,use,multi,window,superposition,method,1D,signals,into,2D,matrix,image,which,subsequently,synthetic,model,study,field,examples,has,effectively,corrected,suppressed,finally,improved,precision,data,interpretation
AB值：
0.554582
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