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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 深部资源勘探装备研发
Direct synthesis of time domain pseudo-random 3D electromagnetic response with a band-limited source

文献类型：期刊论文

作者Luan, Xiaodong5,6,7; Zhang, Wenwei4; Di, Qingyun1,2,7; Wang, Ruo1,2; Li, Yong5; Tang, Xiaojing3
刊名JOURNAL OF APPLIED GEOPHYSICS
出版日期2022-05-01
卷号200页码:10
ISSN号0926-9851
关键词Pseudo randomly coded technology Signal synthesis Earth's impulse response Source effects 3D geoelectric structures
DOI10.1016/j.jappgeo.2022.104624
英文摘要Methods based on pseudo-random coded emission technology can effectively suppress the noise in electromagnetic exploration and improve the depth and resolution of the detection. Additionally, the synthesis of electromagnetic response signals excited by pseudo-random code sources can provide not only theoretical data for data processing but also intermediate results for evaluations of field data. Currently, pseudo-random signal simulations ignore the presence of source effects generated by band-limited sources in the Earth's impulse response. Furthermore, the simulation methods are mainly completed based on one-dimensional and twodimensional formats and thus cannot accurately reflect the pseudo-random response of three-dimensional geoelectric structures. In this paper, 3D pseudo-random electromagnetic signals with a band-limited source were synthesized according to the propagating routine of the electromagnetic field. First, Maxwell's Equations were solved using a three-dimensional time-domain finite volume method. To avoid the singularity of the source and incorporate source effect response, the Gaussian function was introduced to simulate the band-limited impulse sources. The Earth's impulse response was obtained, which contained source effects under three-dimensional geoelectric structures. Then, ideal pseudo-random electromagnetic signals could be composed by convoluting the Earth's impulse response with a pseudo-random source waveform. Since the transmitter and receiver instruments were band-limited, a low-pass filter with a Blackman window was introduced to simulate the instrument's system response. The simulated pseudo-random signals were obtained by adding noise and the ideal pseudo-random electromagnetic signals were filtered using a low-pass filter. By comparison with signals acquired in the field, the correctness of the pseudo-random signal synthesis with source effects was successfully verified.
WOS关键词EXPLORATION ; FREQUENCY ; INVERSION
资助项目National Key Research and Development Program of China[2018YFF01013305] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14050100] ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources[KLGEPT201906] ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources[2020YFL17]
WOS研究方向Geology ; Mining & Mineral Processing
语种英语
出版者ELSEVIER
WOS记录号WOS:000796501700004
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Geophysical Electromagnetic Probing Technologies of Ministry of Nat-ural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources ; Key Laboratory of Airborne Geophysics and Remote Sensing Geology Ministry of Natural Resources
源URL[http://ir.iggcas.ac.cn/handle/132A11/105949]  
专题地质与地球物理研究所_深部资源勘探装备研发
地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Luan, Xiaodong; Di, Qingyun
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.China Meteorol Adm, Huafeng Meteorol Media Grp, Beijing 100081, Peoples R China
4.Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China
5.Chinese Acad Geol Sci, Inst Geophys & Geochem Explorat, Key Lab Geophys Electromagnet Probing Technol, Minist Nat Resources, Langfang 065000, Peoples R China
6.MNR, Key Lab Airborne Geophys & Remote Sensing Geol, Beijing 100083, Peoples R China
7.China Aero Geophys Survey & Remote Sensing Ctr Nat, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Luan, Xiaodong,Zhang, Wenwei,Di, Qingyun,et al. Direct synthesis of time domain pseudo-random 3D electromagnetic response with a band-limited source[J]. JOURNAL OF APPLIED GEOPHYSICS,2022,200:10.
APA Luan, Xiaodong,Zhang, Wenwei,Di, Qingyun,Wang, Ruo,Li, Yong,&Tang, Xiaojing.(2022).Direct synthesis of time domain pseudo-random 3D electromagnetic response with a band-limited source.JOURNAL OF APPLIED GEOPHYSICS,200,10.
MLA Luan, Xiaodong,et al."Direct synthesis of time domain pseudo-random 3D electromagnetic response with a band-limited source".JOURNAL OF APPLIED GEOPHYSICS 200(2022):10.

入库方式： OAI收割

来源：地质与地球物理研究所

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