基于多网格的频率域全波形反演

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Bibliographic Details
Published in应用地球物理：英文版 Vol. 8; no. 4; pp. 303 - 310
Main Author 宋建勇 郑晓东 秦臻 苏本玉
Format Journal Article
LanguageEnglish
Published 2011
Subjects
全波形反演
双共轭梯度稳定算法
多重网格迭代法
频率域波动方程
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Bibliography:Full waveform inversion, frequency domain wave equation, multi-grid iterative method, bi-conjugated gradient stable algorithm
Although full waveform inversion in the frequency domain can overcome the local minima problem in the time direction, such problem still exists in the space direction because of the media subsurface complexity. Based on the optimal steep descent methods, we present an algorithm which combines the preconditioned bi-conjugated gradient stable method and the multi-grid method to compute the wave propagation and the gradient space. The multiple scale prosperity of the waveform inversion and the multi-grid method can overcome the inverse problems local minima defect and accelerate convergence. The local inhomogeneous three-hole model simulated results and the Marmousi model certify the algorithm effectiveness.
11-5212/O
Song Jian-Yong, Zheng Xiao-Dong, Qin Zhen, and Su Ben-Yu（ 1. Geophysical Department CNPC RIPED, Beijing, 10083, China. 2. Department of Earth Resources Engineering, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan.）
ISSN:1672-7975
1993-0658