Quantifying the depth profile of time reversal focusing in elastic media

2014 ◽  
Vol 136 (4) ◽  
pp. 2265-2265
Author(s):  
Brian E. Anderson ◽  
Marcel C. Remillieux ◽  
Timothy J. Ulrich ◽  
Pierre-Yves Le Bas
Ultrasonics ◽  
2015 ◽  
Vol 58 ◽  
pp. 60-66 ◽  
Author(s):  
Marcel C. Remillieux ◽  
Brian E. Anderson ◽  
T.J. Ulrich ◽  
Pierre-Yves Le Bas ◽  
Cedric Payan

2009 ◽  
Vol 125 (4) ◽  
pp. 2521-2521
Author(s):  
Brian E. Anderson ◽  
Robert A. Guyer ◽  
Timothy J. Ulrich ◽  
Pierre‐Yves Le Bas ◽  
Carene Larmat ◽  
...  

2009 ◽  
Vol 94 (11) ◽  
pp. 111908 ◽  
Author(s):  
Brian E. Anderson ◽  
Robert A. Guyer ◽  
Timothy J. Ulrich ◽  
Paul A. Johnson

2013 ◽  
Vol 24 (4) ◽  
pp. 565-600 ◽  
Author(s):  
HABIB AMMARI ◽  
ELIE BRETIN ◽  
JOSSELIN GARNIER ◽  
ABDUL WAHAB

In this paper we consider the problem of reconstructing sources in a homogeneous viscoelastic medium from wavefield measurements. We first present a modified time-reversal imaging algorithm based on a weighted Helmholtz decomposition and justify mathematically that it provides a better approximation than by simply time reversing the displacement field, where artifacts appear due to the coupling between the pressure and shear waves. Then we investigate the source inverse problem in an elastic attenuating medium. We provide a regularized time-reversal imaging which corrects the attenuation effect at the first order. The results of this paper yield the fundamental tools for solving imaging problems in elastic media using cross-correlation techniques.


2011 ◽  
Vol 130 (4) ◽  
pp. EL219-EL225 ◽  
Author(s):  
Brian E. Anderson ◽  
Michele Griffa ◽  
Timothy J. Ulrich ◽  
Paul A. Johnson
Keyword(s):  

2009 ◽  
Vol 125 (4) ◽  
pp. 2594-2594
Author(s):  
Brian E. Anderson ◽  
Robert A. Guyer ◽  
Timothy J. Ulrich ◽  
Paul A. Johnson
Keyword(s):  

2009 ◽  
Vol 95 (2) ◽  
pp. 021907 ◽  
Author(s):  
Brian E. Anderson ◽  
Robert A. Guyer ◽  
Timothy J. Ulrich ◽  
Pierre-Yves Le Bas ◽  
Carène Larmat ◽  
...  

2016 ◽  
Vol 139 (2) ◽  
pp. EL25-EL30 ◽  
Author(s):  
Brian E. Anderson ◽  
Timothy J. Ulrich ◽  
Pierre-Yves Le Bas ◽  
James A. Ten Cate

2013 ◽  
Vol 134 (6) ◽  
pp. EL527-EL533 ◽  
Author(s):  
Brian E. Anderson ◽  
Timothy J. Ulrich ◽  
Pierre-Yves Le Bas

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