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 Biondi, B., 1992, Solving the frequencydependent Eikonal equation: 62nd Ann. Internat. Mtg., Soc. Expl. Geophys., Expanded Abstracts, 13151319.

 Cervený, V., Popov, M. M., and Psencik, I., 1982, Computation of wave fields in inhomogenous media: Geophys. J. Roy. Astr. Soc., 70, 109128.

 Claerbout, J. F., 1985, Tuning up Fourier Migrations:, in Imaging the Earth's Interior Blackwell Scientific Publications, 272274.

 Gazdag, J., and Sguazzero, P., 1984, Migration of seismic data by phaseshift plus interpolation: Geophysics, 49, no. 2, 124131.

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overthree
Figure 7 Modeling in a linear velocity
gradient in depth. A time slice of the Green's function, depth is plotted upwards.
The plot on the bottom was computed by PSPI in rectangular coordinates.
The plot in the middle was computed by PSPI in a polar coordinate frame.
The plot on the top was
computed using the wave equation in polar coordinates.
reflthree
Figure 8 Modeling in a two layer model.
A time slice of the Green's function, depth is plotted upwards.
The plot on the bottom was computed by PSPI in rectangular coordinates.
The plot in the middle was computed by PSPI in a polar coordinate frame.
The plot on the top was
computed using the wave equation in polar coordinates.
blobthree
Figure 9 Modeling in medium with
a Gaussian anomaly. A time slice of the Green's function, depth is plotted upwards.
The plot on the bottom was computed by PSPI in rectangular coordinates.
The plot in the middle was computed by PSPI in a polar coordinate frame.
The plot on the top was
computed using the wave equation in polar coordinates.
Next: About this document ...
Up: Nichols: Modeling in polar
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Stanford Exploration Project
11/17/1997