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Erschienen in:
2003 | OriginalPaper | Buchkapitel
Global and Selective Focusing Using Acoustic Time Reversal Mirrors in the Frequency Domain
verfasst von : Christophe Hazard, Karim Ramdani
Erschienen in: Mathematical and Numerical Aspects of Wave Propagation WAVES 2003
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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Acoustic time reversal has known in the few last years a significant growth of interest, covering a large number of applications (medical imaging, non destructive testing,…). The main idea of this phenomenon is to take advantage of the reversibility of the wave equation in a non dissipative unknown medium to back-propagate signals to the sources that emitted them. Today, the physical literature (cf. [4] for more details) and mathematical one on this topic are quite rich (see [1] or [2] for time reversal in the time domain, [6] for time reversal in the frequency domain, and [7] for time reversal in random media).