论文标题
Marchenko逃生的波
The Marchenko method for evanescent waves
论文作者
论文摘要
使用Marchenko方法，可以从表面的地震反射数据中检索Green在地下中的功能。最先进的Marchenko方法在传播波动方面非常有效，但对于逃生的波浪而分解。本文讨论了扩展Marchenko方法的第一步，以进行逃生的波浪，并分析其可能性和局限性。从理论上讲，可以检索向下和向上的衰减组件。向上衰减组件的检索似乎对模型错误非常敏感，但是可以以合理稳定且准确的方式检索下向下衰减组件（包括多种反射）。报道的研究为开发新的Marchenko方法开辟了道路，该方法可以在广角反射数据中处理折射波。
With the Marchenko method, Green's functions in the subsurface can be retrieved from seismic reflection data at the surface. State-of-the-art Marchenko methods work well for propagating waves but break down for evanescent waves. This paper discusses a first step towards extending the Marchenko method for evanescent waves and analyses its possibilities and limitations. In theory both the downward and upward decaying components can be retrieved. The retrieval of the upward decaying component appears to be very sensitive to model errors, but the downward decaying component, including multiple reflections, can be retrieved in a reasonably stable and accurate way. The reported research opens the way to develop new Marchenko methods that can handle refracted waves in wide-angle reflection data.
