Gaussian Beam Imaging Based on Finite-difference Wave Propogation Method

2013 ◽  
Author(s):  
M. Protasov ◽  
M. Dmitriev
Keyword(s):  
Finite Difference ◽  
Gaussian Beam ◽  
Difference Wave ◽  
Wave Propogation

Implicit interpolation in reverse‐time migration

Geophysics ◽  
1997 ◽  
Vol 62 (3) ◽  
pp. 906-917 ◽  
Author(s):  
Jinming Zhu ◽  
Larry R. Lines
Keyword(s):  
Wave Equation ◽  
Finite Difference ◽  
Real Data ◽  
Seismic Sources ◽  
Reverse Time ◽  
Reverse Time Migration ◽  
Difference Wave ◽  
Time Migration ◽  
Seismic Acquisition ◽  
Recorded Data

Reverse‐time migration applies finite‐difference wave equation solutions by using unaliased time‐reversed recorded traces as seismic sources. Recorded data can be sparsely or irregularly sampled relative to a finely spaced finite‐difference mesh because of the nature of seismic acquisition. Fortunately, reliable interpolation of missing traces is implicitly included in the reverse‐time wave equation computations. This implicit interpolation is essentially based on the ability of the wavefield to “heal itself” during propagation. Both synthetic and real data examples demonstrate that reverse‐time migration can often be performed effectively without the need for explicit interpolation of missing traces.

On the interface error analysis for finite difference wave simulation

2010 ◽  
Vol 14 (4) ◽  
pp. 769-778 ◽  
Author(s):  
Vadim Lisitsa ◽  
Olga Podgornova ◽  
Vladimir Tcheverda
Keyword(s):  
Finite Difference ◽  
Error Analysis ◽  
Difference Wave ◽  
Wave Simulation
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