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Elastic least-squares one-way wave-equation migration

open access: yesGEOPHYSICS, 2017
Least-squares migration seeks a reflectivity model that fits the observed data. It is used to compensate for acquisition noise, poor sampling of sources and receivers on the surface, as well as poor illumination of the subsurface. To date, least-squares migration has been mainly restricted to the imaging of acoustic wavefields.
Aaron Stanton, Mauricio D. Sacchi
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Dip angle-compensated one-way wave equation migration

Exploration Geophysics, 2010
Conventional migration algorithms based on one-way wave equations in a Cartesian coordinate system often underestimateamplitudes,especiallyatlargepropagationorreflectionangles.Thishasadeleteriouseffectonseismicimages and should be corrected. We illustrate the nature of the problem by working in the more natural spherical coordinate system and offer two
Weijia Sun, Binzhong Zhou, Li-Yun Fu
exaly   +2 more sources

The Theory of True Amplitude One‐Way Wave Equation Migrations

Chinese Journal of Geophysics, 2006
AbstractIn this technical report, we review the recent development of true amplitude one‐way wave equation migration and summarize the migrated amplitude performance from different one‐way wave equations. To produce correct amplitude from postack phase‐shift migration, we have to apply accurate geometrical spreading compensation in preprocessing ...
exaly   +2 more sources

Wide-angle one-way wave equations

The Journal of the Acoustical Society of America, 1988
A one-way wave equation, also known as a paraxial or parabolic wave equation, is a differential equation that permits wave propagation in certain directions only. Such equations are used regularly in underwater acoustics, in geophysics, and as energy-absorbing numerical boundary conditions.
L, Halpern, L N, Trefethen
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Optimization of one-way wave equations

Geophysics, 1985
Abstract The theory of wave extrapolation is based on the square-root equation or one-way equation. The full wave equation represents waves which propagate in both directions. On the contrary, the square-root equation represents waves propagating in one direction only.
Myung W. Lee, Sang Y. Suh
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On inverse source problems for the one-way wave equation

Wave Motion, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wall, David J. N., Lundstedt, Jonas
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