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Study of cross-hole radar tomography using full-waveform inversion
Alternative TitleStudy of cross-hole radar tomography using full-waveform inversion
Wu JunJun1; Liu SiXin2; Li YanPeng1; Zhang YuSheng1; Zhang LiLi3; Fu Lei2; Wang Fei2; Meng Xu2; Lei LinLin2
2014
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume57Issue:5Pages:1623-1635
AbstractFull waveform inversion of cross-hole radar is a kind of tomographic imaging technique. It uses full-waveform information to obtain the electric parameters of the underground media between the boreholes. Most conventional tomographic inversions use ray tracing method, the velocity profile (permittivity image) can be obtained by first-arrival wave, and attenuation profile (conductivity image) can be obtained from maximum amplitude. There are many shortcomings of conventional method. The main reason is that it just uses a small portion of the signal information. In this paper, we derive the algorithm of cross-hole radar full-wave inversion. The parallel algorithm based on distributed computers effectively solves the problem of massive data computation. First of all, we establish a 2D-TE mode finite-difference time-domain method (FDTD) with uniaxial perfectly matched layers (UPML) as forward modeling algorithm. What's more, we derive the gradient and step formulas. And we propose the first permittivity inversion image as the initial model of simultaneous inversion. Finally we test several models and achieve good inversion results.
KeywordMAXWELLS EQUATIONS GEORADAR DATA DOMAIN RECONSTRUCTION Full waveform inversion Cross-hole radar Gradient Permittivity Conductivity
Indexed ByCSCD
Language英语
CSCD IDCSCD:5154106
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/143913
Collection中国科学院金属研究所
Affiliation1.BGP Inc, China Natl Petr Corp, Zhuozhou 072751, Peoples R China
2.吉林大学
3.中国科学院金属研究所
Recommended Citation
GB/T 7714
Wu JunJun,Liu SiXin,Li YanPeng,et al. Study of cross-hole radar tomography using full-waveform inversion[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(5):1623-1635.
APA Wu JunJun.,Liu SiXin.,Li YanPeng.,Zhang YuSheng.,Zhang LiLi.,...&Lei LinLin.(2014).Study of cross-hole radar tomography using full-waveform inversion.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(5),1623-1635.
MLA Wu JunJun,et al."Study of cross-hole radar tomography using full-waveform inversion".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.5(2014):1623-1635.
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