Study of cross-hole radar tomography using full-waveform inversion

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	Study of cross-hole radar tomography using full-waveform inversion
	Wu JunJun 2; Liu SiXin 1; Li YanPeng 2; Zhang YuSheng 2; Zhang LiLi 3; Fu Lei 1; Wang Fei 1; Meng Xu 1; Lei LinLin 1
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2014
卷号	57 期号:5 页码:1623-1635
关键词	MAXWELLS EQUATIONS GEORADAR DATA DOMAIN RECONSTRUCTION Full waveform inversion Cross-hole radar Gradient Permittivity Conductivity
ISSN号	0001-5733
其他题名	Study of cross-hole radar tomography using full-waveform inversion
英文摘要	Full 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.
语种	英语
CSCD记录号	CSCD:5154106
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/143912]
专题	金属研究所_中国科学院金属研究所
作者单位	1.吉林大学 2.BGP Inc, China Natl Petr Corp, Zhuozhou 072751, Peoples R China 3.中国科学院金属研究所
推荐引用方式 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.