论文标题
反向逆转双差异配置测量和全波反转的应用
Deconvolutional double-difference misfit measurements and the application for full-waveform inversion
论文作者
论文摘要
全波倒置确定从现场数据中确定地质信息丰富的模型是一项挑战。不准确的小波会使它更加复杂。我们开发了一种新型的不匹配函数，标题为“反向逆转双差异不合适的测量”，以取消小波不准确性对反转结果的影响。与流行的双差异不合适测量不同，在该测量中，通过互相关评估了第一个差异，拟议的人采用反卷积来执行此步骤。数值示例表明，具有新的失配函数的全波倒置对小波不准确性具有弹性。即使从粗糙的初始模型中，它也可以收敛到合理的本地最小值。
It is challenging for full-waveform inversion to determine geologically informative models from field data. An inaccurate wavelet can make it more complicated. We develop a novel misfit function, entitled deconvolutional double-difference misfit measurement to cancel the influence of wavelet inaccuracy on inversion results. Unlike the popular double-difference misfit measurement in which the first difference is evaluated by cross-correlation, the proposed one employs deconvolution to do this step. Numerical examples demonstrate that full-waveform inversion with the new misfit function is resilient to the wavelet inaccuracy. It can also converge to plausible local minima even from rough initial models.
