WebFigure 4.20 illustrates the Gaussian beam. At z = 0, the beam radius W(z) is minimum (waist W 0) and the wavefront is planar (curvature radius R(∞) = 00).The beam waist … WebSep 1, 2024 · Request PDF On Sep 1, 2024, Jidong Yang and others published Angle-domain least-squares Gaussian beam migration Find, read and cite all the research …

2D Q-compensated multi-component elastic Gaussian beam migration

WebWe propose a ray tracing method or the Gaussian beam method. With both methods operators can be efficiently generated for any irregular shooting geometry at the surface. As expected, the amplitude behaviour of the Gaussian beam method is better than that of the ray tracing based operators. WebNov 30, 2024 · Therefore, reverse time migration algorithms with Gaussian beams have recently been proposed to reduce the cost, as they combine the high computational efficiency of Gaussian beam migration and the high accuracy of reverse time migration. However, this method was based on the assumption that the subsurface is isotropic. cpu by session hana

EFFICIENT 2D AND 3D SHOT RECORD REDATUMING1

WebGaussian beam migration is an elegant imaging method which has the ability to image multiple arrivals while preserving the advantages of ray-based methods. In this paper, we extend this method to linearized least-squares imaging for elastic waves in isotropic media. We dynamically transform the multi-component data to the principal compo- WebPoststack Gaussian beam migration of a single slant-stacked trace in a single direction. From Hale (1992). Gaussian beams complicate the complete picture considerably. Gaussian beams have traveltimes and amplitudes that are both complex-valued. In fact, it is the imaginary part of the traveltime within the beam, not the taper applied to the ... WebJan 1, 2024 · The Gaussian beam migration (GBM) is a steady imaging approach, which has high accuracy and efficiency. Its implementation mainly includes the traditional … distance new braunfels to buda