Seismic Interferometry Using Non-Far-Field Sources and Removing the Spurious Arrival

doi:10.1785/0120100218

	Seismic Interferometry Using Non-Far-Field Sources and Removing the Spurious Arrival
	Zheng, Yingcai 1,2; Wu, Ru-Shan 2; Liu, Yike 3; Fehler, Michael C.1
刊名	BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
	2011-04-01
卷号	101 期号:2 页码:888-894
ISSN号	0037-1106
DOI	10.1785/0120100218
文献子类	Article
英文摘要	Seismic interferometry using far-field correlation is a technique to obtain the Green's function between two receivers using passive wave-field recordings, and often it is under the theoretical assumption that sources are in the far field when in fact they may not be. Using a heterogeneous medium enclosed by a closed boundary on which the sources are fired, we offer two views on the meaning of the far-field correlation. In the intrinsic view, the validity of the far-field correlation is based on the far-field approximation for wave scattering, and it is investigated by comparing various physical dimensions in the heterogeneous interior, regardless of the exterior. However, the extrinsic view centers on the medium properties in the exterior only without considering the interior. Previous studies showed that, with the correct scattering model and complete source coverage, no spurious arrivals should be generated if the illuminating sources are in the far field. We investigate the case of near-field cross correlation. This problem is considered in the context of two-dimensional space with a single embedded scatterer that is represented by a cylindrical inclusion with small radius. An analytical solution for the scattered wave is computed. However, if the sources are not in the far field, the cross-correlation kernel must be used to eliminate the spurious arrival, in addition to the correct scattering model and full source aperture. The kernel accounts for the near-field illumination of the region.
WOS关键词	GREENS-FUNCTION ; CROSS-CORRELATION ; OPTICAL THEOREM ; RETRIEVAL ; WAVES ; CODA
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SEISMOLOGICAL SOC AMER
WOS记录号	WOS:000288647000032
资助机构	National Science Foundation(EAR-0838359) ; National Science Foundation(EAR-0838359) ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; National Natural Science Foundation of China(40930421) ; National Natural Science Foundation of China(40930421) ; Air Force(FA8718-07-C-0005) ; Air Force(FA8718-07-C-0005) ; National Science Foundation(EAR-0838359) ; National Science Foundation(EAR-0838359) ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; National Natural Science Foundation of China(40930421) ; National Natural Science Foundation of China(40930421) ; Air Force(FA8718-07-C-0005) ; Air Force(FA8718-07-C-0005) ; National Science Foundation(EAR-0838359) ; National Science Foundation(EAR-0838359) ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; National Natural Science Foundation of China(40930421) ; National Natural Science Foundation of China(40930421) ; Air Force(FA8718-07-C-0005) ; Air Force(FA8718-07-C-0005) ; National Science Foundation(EAR-0838359) ; National Science Foundation(EAR-0838359) ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; Wavelet Transform on Propagation and Imaging (WTOPI) Consortium/UCSC ; National Natural Science Foundation of China(40930421) ; National Natural Science Foundation of China(40930421) ; Air Force(FA8718-07-C-0005) ; Air Force(FA8718-07-C-0005)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/74569]
专题	中国科学院地质与地球物理研究所
通讯作者	Zheng, Yingcai
作者单位	1.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA 2.Univ Calif Santa Cruz, Inst Geophys & Planetary Phys, Santa Cruz, CA 95064 USA 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Yingcai,Wu, Ru-Shan,Liu, Yike,et al. Seismic Interferometry Using Non-Far-Field Sources and Removing the Spurious Arrival[J]. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA,2011,101(2):888-894.
APA	Zheng, Yingcai,Wu, Ru-Shan,Liu, Yike,&Fehler, Michael C..(2011).Seismic Interferometry Using Non-Far-Field Sources and Removing the Spurious Arrival.BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA,101(2),888-894.
MLA	Zheng, Yingcai,et al."Seismic Interferometry Using Non-Far-Field Sources and Removing the Spurious Arrival".BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 101.2(2011):888-894.