Joint traveltime, waveform, and waveform envelope inversion for near-surface imaging
Joint traveltime, waveform, and waveform envelope inversion for near-surface imaging
复制标题
用于近地表成像的联合走时、波形和波形包络反演
DOI:
10.1190/geo2016-0356.1
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发表时间:
2017-05
期刊:
影响因子:
3.3
通讯作者:
Zhang Jie
中科院分区:
文献类型:
--
作者:
Liu Zhiyang;Zhang Jie
ABSTRACTThe first-arrival traveltimes without large offsets constrain very shallow velocities, the waveform envelope presents low-frequency data, and the high-frequency waveform itself includes information regarding structural details. We have developed a joint traveltime, waveform, and waveform envelope (JTWE) inversion method for inverting near-surface velocity structures. By inverting three types of data, we are able to recover the low- and high-wavenumber structures and mitigate the cycle-skipping problem in waveform inversion. The calculation of traveltimes and raypaths is fast. Most of the computation effort is focused on dealing with the waveform and waveform envelope. JTWE backward propagates the waveform residual and envelope residual simultaneously to calculate the model updating gradients. This simultaneous backward-propagation strategy ensures that the computational cost of JTWE is similar to the cost of inverting waveform alone. In a synthetic experiment, we determine that JTWE mitigates the ...
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影响因子:
3.3
作者:
L. Sirgue;R. Pratt
通讯作者:
L. Sirgue;R. Pratt
DOI:
10.1190/segam2014-0978.1
发表时间:
2014-08
期刊:
Seg Technical Program Expanded Abstracts
影响因子:
--
作者:
Wenyi Hu
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Wenyi Hu
DOI:
10.1007/978-3-319-27330-3_4
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2015
期刊:
Seg Technical Program Expanded Abstracts
影响因子:
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S. Hanasoge
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S. Hanasoge
DOI:
10.1190/1.3513930
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2010
期刊:
Seg Technical Program Expanded Abstracts
影响因子:
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作者:
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通讯作者:
R. Plessix;G. Baeten;J. W. Maag;M. Klaassen;Zhang Rujie;Tao Zhifei
DOI:
10.1190/1.3064036
发表时间:
2008
期刊:
Seg Technical Program Expanded Abstracts
影响因子:
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作者:
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