Decomposition of time reversal operator method in a small elastic scatterer

2009 ◽  
Author(s):  
Dinh-Quy Nguyen ◽  
Woon-Seng Gan
Keyword(s):  
Time Reversal ◽  
Operator Method ◽  
Elastic Scatterer

Extraction of a backscattered target signature in a shallow water waveguide with decomposition of the time reversal operator method

2007 ◽  
Vol 122 (5) ◽  
pp. 3022 ◽  
Author(s):  
Franck Philippe ◽  
Claire Prada ◽  
Julien de Rosny ◽  
Dominique Clorennec ◽  
Mathias Fink
Keyword(s):  
Shallow Water ◽  
Time Reversal ◽  
Operator Method

Targets Detection Based on Time Reversal Operator with Uniform Circular Array

2014 ◽  
Vol 602-605 ◽  
pp. 1855-1858
Author(s):  
Wei Liu ◽  
Yong Qing Fu ◽  
Da Xu
Keyword(s):  
Antenna Array ◽  
Time Reversal ◽  
Operator Method ◽  
Circular Array ◽  
Electromagnetic Environment ◽  
The Given

In order to detect targets accurately in electromagnetic environment, a decomposition of time reversal operator method for detecting targets with uniform circular array (UCA) is proposed in this paper. In this method, the time reversal operator in UCA is obtained by the transmission functions of targets and antenna array. And then, the eigenvector decomposition of time reversal operator is performed. According to the eigenvectors and the transmission functions of targets and scanning points in the given targets area, the focusing values of all scanning points are calculated, and the direction of scanning points whose focusing values are far greater than others are the direction of targets. Finally, the simulations verify the effectiveness of the proposed method.

Detection and Selective Focusing on Scatterers Using Decomposition of Time Reversal Operator Method in Pekeris Waveguide Model

2001 ◽  
Vol 40 (Part 1, No. 5B) ◽  
pp. 3822-3828 ◽  
Author(s):  
Tomoki Yokoyama ◽  
Toshiaki Kikuchi ◽  
Toshio Tsuchiya ◽  
Akio Hasegawa
Keyword(s):  
Time Reversal ◽  
Operator Method ◽  
Waveguide Model ◽  
Pekeris Waveguide

Focusing with the decomposition of the time reversal operator method in noisy environments

2009 ◽  
Vol 10 (7) ◽  
pp. 997-1008 ◽  
Author(s):  
Chun-xiao Li ◽  
Jian-long Li ◽  
Xian-yi Gong ◽  
Ming-fei Guo
Keyword(s):  
Time Reversal ◽  
Operator Method ◽  
Noisy Environments

Time Reversal in Lossy Material: An Assessment

PIERS Online ◽  
2006 ◽  
Vol 3 (8) ◽  
pp. 1259-1263
Author(s):  
Ian Scott ◽  
Ana Vukovic ◽  
Phillip Sewell
Keyword(s):  
Time Reversal ◽  
Lossy Material

Thermoacoustic imaging using time reversal

2007 ◽  
Author(s):  
Hubert Grün ◽  
Christian Hofer ◽  
Markus Haltmeier ◽  
Günther Paltauf ◽  
Peter Burgholzer
Keyword(s):  
Time Reversal ◽  
Thermoacoustic Imaging
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