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DOI：10.1109/JOE.2005.862131.png)
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Iterative Time Reversal (TR) procedures have been demonstrated to be successful in detecting scatterers even in a highly reverberant environment. The success or the method is attributable to a Time Reversal Mirror (TRM) consisting of an array or transceivers that allows one to reconstruct and reverse-propagate wavefronts of interest. This paper deals with the limiting case or a TRM reduced to a single transceiver, tested using a tank experiment with three scattering objects in free-field conditions. It is shown that it is possible to excite a resonance between the TR operator and the strongest mode of the target in the bandwidth of insonification. A simple free-field scattering model is used to study the mechanisms of convergence and to drive the physics-based analysis of data.
Keyword:
acoustic scattering
sonar measurement
time reversal acoustics
underwater acoustics
underwater object detection
期刊
IF:
5.3
论文数:
2.6K
被引数:
7.4K
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