论文标题
比较本地FWI的策略：FD注入和沉浸式边界条件
Comparing Strategies for Local FWI: FD Injection and Immersive Boundary Conditions
论文作者
论文摘要
常规的全波形反演需要计算目标函数以最小化并使用整个属性模型来构建梯度，而地球科学家通常只对局部区域感兴趣的情况。在这项研究中，我们使用两种策略在时域执行本地FWI。一个无视局部改变模型与外部（FD注射）的相互作用的相互作用，第二个可以考虑这些迭代（沉浸式边界条件）。数值测试显示了是否为外部模型的不同精度搁置这些相互作用的影响。
Conventional Full Waveform Inversion requires calculating the objective function to be minimized and construction a gradient using the whole property model, when is often the case where geoscientist are only interested in a local region. In this study, we use two strategies to perform local FWI in time domain. One that disregards the interaction of the locally altered model with the exterior (FD injection) and the second that can take these iterations into account (Immersive Boundary Conditions). Numerical tests show the influence of whether or not to set aside these interactions for different accuracy of the exterior model.
