Full Waveform Inversion
Full Waveform Inversion
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DOI：
10.1007/978-3-319-27330-3_4
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
S. Hanasoge
中科院分区：
文献类型：
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作者：
S. Hanasoge
从光球测量的地震波场推断太阳的内部性质构成日震逆问题。在地震测量（如波的传播时间）从他们的基准值估计一个给定的太阳内部模型的偏差意味着该模型是不准确的。在本节中，我们实现迭代反演以获得扰动的子表面结构。该模型可以使用最速下降或Krylov子空间技术，如共轭梯度，或有限记忆Broyden-Fletcher-Goldfarb-Shanno方法来连续改进。
Inferring interior properties of the Sun from photospheric measurements of the seismic wavefield constitutes the helioseismic inverse problem. Deviations in seismic measurements (such as wave travel times) from their fiducial values estimated for a given model of the solar interior imply that the model is inaccurate. In this section, we implement iterative inversions to obtain the sub-surface structure of perturbations. The model can be successively improved using either steepest descent or Krylov-subspace techniques such as conjugate gradient, or limited-memory Broyden-Fletcher-Goldfarb-Shanno method.