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PubMed
Article by Chang Y
Article by Zhang Y
Article by Weng A
Article by Li S
Article by Li J
Article by Tang Y
CSAMTһάȫƵ�ӵ����ʷ���
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1. ����ʡ�ؿ��ֵ�һˮ�Ĺ��̵��ʿ���Ժ, ���հ��� 233000;
2. ���ִ�ѧ����̽���ѧ�뼼��ѧԺ, ���� 130026
ժҪ�� ���IJ���ȫƵ���ӵ����ʷ��ݣ�ʹ��2-3~213 HzƵ�ʣ����Ҳ��������͹�����У����ֱ���ÿ������ӵ�������Ϊ���ݲ��������ݲ�������淨�������޳�������ˮƽ��״���ʵĵ�ų����������ݲ��������ڴ���ţ�ٷ�����ֵģ���������ģ�ͺ�ʵ�����ݽ��з��ݣ��õ��˷��ϵ��µ��Ա仯�ķ���ģ�ͽ����֤ʵ��CSAMTһάȫƵ�ӵ����ʷ��ݾ��п�ʵʩ�ԡ�
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1-D full frequency apparent resistivity inversion of CSAMT
CHANG Yun1, ZHANG Yan-hui2, WENG Ai-hua2, LI Si-rui2, LI Jian-ping2, TANG Yu2
1. The First Institute of Hydrology and Engineering Geological Prospecing, Anhui Geological Prospecting Bureau, Bengbu 233000, Anhui, China;
2. College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China
Abstract: The authors conducted full frequency apparent resistivity inversion, using frequency from 2-3 to 213 Hz, without near-field and transition area correction but directly using Cagniard apparent resistivity as inverse parameter. The electromagnetic fields of a long wire in horizontal layered media were obtained by using the virtual interface method in the forward modeling, where as the limited memory BFGS method was adopted for inversion. A three-layer model and the measured data were used for inversion and the inversion modeling results matched well with the real data, which validated the application of 1-D full frequency apparent resistivity inversion of CSAM.
Keywords: CSAMT   full frequency   Cagniard apparent resistivity   inversion   L-BFGS method  
�ո����� 2016-09-26 �޻����� 2017-05-07 ����淢������  
DOI: 10.3969/j.issn.1004-5589.2017.03.033
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