NDLI: Nonstationary seismic deconvolution by adaptive molecular decomposition

Content Provider	IEEE Xplore Digital Library
Author	Lingling Wang Jinghuai Gao Wei Zhao Xiudi Jiang
Copyright Year	2011
Description	Author affiliation: Institute of wave and information, Xi'an Jiaotong University, China, 710049 (Lingling Wang; Jinghuai Gao) \|\| China National Offshore Oil Corporation, Beijing, China, 100027 (Wei Zhao; Xiudi Jiang)
Abstract	An approach is proposed to improve the resolution of nonstationary seismic data by adaptive molecular decomposition. For each seismic trace, a set of nonuniform molecular windows is constructed according to the attenuation trend described by smoothed weighted and damped instantaneous frequencies (WDIF) located at the trace's envelope peaks. Such that in each window, the seismic trace is approximately stationary. These nonuniform molecular windows are used to produce a couple of Molecular-Gabor frames. For the trace segment in each window, the spectrum-broadening and energy compensation are performed in Molecular-Gabor domain. Subsequently, a high-resolution version of the nonstationary seismic data can be obtained after inverse Molecular-Gabor transform. Applications of this method to both synthetic and real data show that the proposed method works well for a general earth Q-model that varies with travel time, and can expand the frequency band and recover the absorbed energy of the nonstationary seismic trace effectively.
Starting Page	2189
Ending Page	2192
File Size	314507
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049601
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Attenuation Deconvolution Wiener filter Time frequency analysis Gabor filters Transforms Geophysics nonuniform adaptive deconvolution high resolution nonstationary seismic data
Content Type	Text
Resource Type	Article

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