Fundamental Issues in Full Waveform Inversion

Fundamental Issues in Full Waveform Inversion
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DOI:
10.1190/segam2012-0878.1
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发表时间:
2012-11
期刊:
Seg Technical Program Expanded Abstracts
影响因子:
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通讯作者:
Hongbo Zhou;L. Amundsen;Guanquan Zhang
Hongbo Zhou;L. Amundsen;Guanquan Zhang
中科院分区:
其他
文献类型:
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作者:
Hongbo Zhou;L. Amundsen;Guanquan Zhang

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在本文中,我们讨论了全波形反演(FWI)的一些基本问题。我们认为,成功的波形反演应该强调走时信息,而淡化幅度信息的作用。这是通过使用一个目标函数来实现的,该目标函数衡量了观测数据和合成数据之间的相互关系。进一步,我们提出,对于数据域中反射数据的FWI,为了减少众所周知的周期跳跃问题,需要进行偏移和去偏移处理。
In this abstract, we discuss some fundamental issues of full waveform inversion (FWI). We believe that a successful waveform inversion should emphasize traveltime information and downplay the role of amplitude information. This is achieved by using an objective function that measures the cross-correlation between observed and synthetic data. Further, we propose that for FWI of reflection data in the data domain, migration and demigration processes are necessary to reduce the wellknown cycle-skip problem.