Generalized S transform and seismic response analysis of thin interbeds

	Generalized S transform and seismic response analysis of thin interbeds
	Gao, JH ; Chen, WC ; Li, YM ; Tian, F
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2003-07-01
卷号	46 期号:4 页码:526-532
关键词	s Transform Generalized s Transform Wavelet Transform Detection Of Thin Beds Seismic Response Analysis
ISSN号	0001-5733
文献子类	Article
英文摘要	S transform (ST) proposed by Stockwell et al. is the unique transform that provides frequency-dependent resolution while maintaining a direct relationship with the Fourier spectrum. This feature is very important for applications. However, the ST can't work well for seismic data analysis since its basic wavelet is not appropriate. In this paper, the ST is generalized with two steps, and two kinds of new transforms are obtained, which are called generalized S transform (GST). First, the basic wavelet in ST is replaced by a modulated harmonic wave with four undetermined coefficients, and then a new transform and its inverse are given, called GST1. Second, taking a linear combination of the basic wavelets in step I as a new basic wavelet, called GST2, and its inverse is constructed. To compare ST and GST, the ST and GST methods are used to analyze several typical models of thin beds, respectively. The results show that GST has a better resolution than ST. The GST methods can detemine the location of interfaces of acoustic impedance in thin beds of thickness being only an eighth wavelength, while ST method can't. In this study, the effectiveness of GST method is also verified by real data.
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000184512900015
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/78631]
专题	中国科学院地质与地球物理研究所
通讯作者	Gao, JH
作者单位	1.Xian Jiaotong Univ, Sch Elect & Informat Engn, Inst Wave & Informat, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Daqing Oil Field Ltd Co, Inst Explorat & Exploitat Oil, Daqing 163712, Peoples R China
推荐引用方式 GB/T 7714	Gao, JH,Chen, WC,Li, YM,et al. Generalized S transform and seismic response analysis of thin interbeds[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2003,46(4):526-532.
APA	Gao, JH,Chen, WC,Li, YM,&Tian, F.(2003).Generalized S transform and seismic response analysis of thin interbeds.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,46(4),526-532.
MLA	Gao, JH,et al."Generalized S transform and seismic response analysis of thin interbeds".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 46.4(2003):526-532.