Transient acoustic wave fields in continuously layered media with depth-dependent attenuation: An analysis based on higher-order asymptotics

1997 ◽  
Vol 101 (4) ◽  
pp. 1808-1820 ◽  
Author(s):  
Martin D. Verweij
Keyword(s):  
Acoustic Wave ◽  
Layered Media ◽  
Higher Order ◽  
Wave Fields ◽  
Higher Order Asymptotics

scholarly journals Coupling Vibrations between Pipe Wall and Internal Higher-Order Acoustic Wave Caused by Valve Choking.

1995 ◽  
Vol 61 (589) ◽  
pp. 3450-3455 ◽  
Author(s):  
Tsutomu Shioyama ◽  
Daisuke Asakura ◽  
Tsuyoshi Kobayashi ◽  
Takashi Iseki ◽  
Hideo Hosaka
Keyword(s):  
Acoustic Wave ◽  
Pipe Wall ◽  
Higher Order

Angle-Domain Gathers Computation Using Poynting Vector of Two-Way Acoustic Wave Equation

2014 ◽  
Vol 962-965 ◽  
pp. 2984-2987
Author(s):  
Jia Jia Yang ◽  
Bing Shou He ◽  
Ting Chen
Keyword(s):  
Wave Equation ◽  
Acoustic Wave ◽  
Real Data ◽  
Flow Density ◽  
Acoustic Wave Equation ◽  
Reverse Time ◽  
Reverse Time Migration ◽  
Wave Fields ◽  
Time Migration ◽  
Source Wave

Based on two-way acoustic wave equation, we present a method for computing angle-domain common-image gathers for reverse time migration. The method calculates the propagation direction of source wave-fields and receiver wave-fields according to expression of energy flow density vectors (Poynting vectors) of acoustic wave equation in space-time domain to obtain the reflection angle, then apply the normalized cross-correlation imaging condition to achieve the angle-domain common-image gathers. The angle gathers obtained can be used for migration velocity analysis, AVA analysis and so on. Numerical examples and real data examples demonstrate the effectiveness of this method.

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