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- W2084440385 abstract "The decomposition of the time-reversal operator provides information on the scattering medium. It has been shown [Chambers, J. Acoust. Soc. Am. 109, (2001)] that a small spherical scatterer is in general associated with four eigenvalues and eigenvectors of the time-reversal operator. In this paper, the 2D problem of scattering by a cylinder measured by a linear array of transducers is considered. Experimental results are obtained for wires of different diameters and different materials. It is shown how the singular-value distribution and the singular vectors depend on the elastic wave speeds cL, cT, the density and the radius of each wire. These results offer a new perspective towards solution of the inverse problem by determining more than scattering contrast using conventional array processing like that used in medical ultrasonic imaging." @default.
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- W2084440385 date "2004-05-01" @default.
- W2084440385 modified "2023-09-25" @default.
- W2084440385 title "Characterization of scattering object with the decomposition of the time‐reversal operator: Theory and experiment" @default.
- W2084440385 doi "https://doi.org/10.1121/1.4784500" @default.
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