Separation of a one‐dimensional bending wave field into propagating and standing parts based on the reflection coefficient estimation

1989 ◽  
Vol 86 (S1) ◽  
pp. S85-S85
Author(s):  
Jukka Linjama ◽  
Tapio Lahti
Keyword(s):  
Reflection Coefficient ◽  
Wave Field ◽  
One Dimensional ◽  
Coefficient Estimation ◽  
Bending Wave

One-dimensional motion of slow atoms in a standing-wave field

1990 ◽  
Vol 42 (7) ◽  
pp. 4032-4036 ◽  
Author(s):  
Y. Z. Wang ◽  
W. Q. Cai ◽  
Y. D. Cheng ◽  
L. Liu ◽  
Y. Luo ◽  
...  
Keyword(s):  
Wave Field ◽  
Standing Wave ◽  
One Dimensional ◽  
Standing Wave Field

Quality-factor and reflection-coefficient estimation using surface-wave ghost reflections from subvertical structures

2015 ◽  
Vol 112 ◽  
pp. 206-214 ◽  
Author(s):  
Deyan Draganov ◽  
Elmer Ruigrok ◽  
Ranajit Ghose ◽  
Dylan Mikesell ◽  
Kasper van Wijk
Keyword(s):  
Surface Wave ◽  
Reflection Coefficient ◽  
Quality Factor ◽  
Coefficient Estimation

Full wave-field reflection coefficient inversion

2007 ◽  
Vol 122 (6) ◽  
pp. 3327-3337 ◽  
Author(s):  
Jan Dettmer ◽  
Stan E. Dosso ◽  
Charles W. Holland
Keyword(s):  
Reflection Coefficient ◽  
Wave Field ◽  
Full Wave

Quality-factor and reflection-coefficient estimation using reflected surface waves

2014 ◽  
Author(s):  
Deyan Draganov* ◽  
Elmer Ruigrok ◽  
Ranajit Ghose ◽  
Dylan Mikesell ◽  
Kasper van Wijk
Keyword(s):  
Reflection Coefficient ◽  
Surface Waves ◽  
Quality Factor ◽  
Coefficient Estimation

Self-action of a wave field in one-dimensional system of weakly coupled active optical waveguides

2018 ◽  
Vol 48 (8) ◽  
pp. 720-727
Author(s):  
A.A. Balakin ◽  
A.G. Litvak ◽  
V.A. Mironov ◽  
S.A. Skobelev
Keyword(s):  
Wave Field ◽  
Optical Waveguides ◽  
Dimensional System ◽  
One Dimensional ◽  
Weakly Coupled

Angle‐dependent reflectivity by means of prestack migration

Geophysics ◽  
1990 ◽  
Vol 55 (9) ◽  
pp. 1223-1234 ◽  
Author(s):  
C. G. M. de Bruin ◽  
C. P. A. Wapenaar ◽  
A. J. Berkhout
Keyword(s):  
Reflection Coefficient ◽  
Wave Field ◽  
Grid Point ◽  
Depth Level ◽  
Wave Fields ◽  
Prestack Migration ◽  
Reflected Wave ◽  
Zero Offset ◽  
Source Wave ◽  
Angle Dependent Reflectivity

Most present day seismic migration schemes determine only the zero‐offset reflection coefficient for each grid point (depth point) in the subsurface. In matrix notation, the zero‐offset reflection coefficient is found on the diagonal of a reflectivity matrix operator that transforms the illuminating source‐wave field into a reflected‐wave field. However, angle dependent reflectivity information is contained in the full reflectivity matrix. Our objective is to obtain angle‐dependent reflection coefficients from seismic data by means of prestack migration (multisource, multioffset). After downward extrapolation of source and reflected wave fields to one depth level, the rows of the reflectivity matrix (representing angle‐dependent reflectivity information for each grid point at that depth level) are recovered by deconvolving the reflected wave fields with the related source wave fields. This process is carried out in the space‐frequency domain. In order to preserve the angle‐dependent reflectivity in the imaging we must not only add all frequency contributions but we should extend the imaging principle by adding along lines of constant angle in the wavenumber‐frequency domain. This procedure is carried out for each grid point. The resulting amplitude information provides a rigorous approach to amplitude‐versus‐offset related methods. The new imaging technique has been tested on media with horizontal layers. However, with our shot‐record oriented algorithm it is possible to handle any subsurface geometry. The first tests show excellent results up to high angles, both in the acoustic and in the elastic case. With angle‐dependent reflectivity information it becomes feasible to derive detailed velocity and density information in a subsequent stratigraphic inversion step.

Sea Surface Reflection Coefficient Estimation

2013 ◽  
Author(s):  
Okwudili C. Orji ◽  
Walter Sollner ◽  
Leiv J. Gelius
Keyword(s):  
Reflection Coefficient ◽  
Sea Surface ◽  
Surface Reflection ◽  
Coefficient Estimation
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