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Article
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HAL-CEA
Conference object . 2017
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https://doi.org/10.1063/1.4974...
Article . 2017 . Peer-reviewed
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https://dx.doi.org/10.1063/1.4...
Other literature type
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Claim

High-frequency Total Focusing Method (TFM) imaging in strongly attenuating materials with the decomposition of the time reversal operator associated with orthogonal coded excitations

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type , Conference object 01 Jan 2017 France Publisher:Author(s)Journal:AIP Conference Proceedings, volume 1,806, page 40,002 (issn: 0094-243X, Copyright policy )
Authors: Villaverde, E.L.; Robert, S.; Prada, C.;

doi: 10.1063/1.4974589

High-frequency Total Focusing Method (TFM) imaging in strongly attenuating materials with the decomposition of the time reversal operator associated with orthogonal coded excitations

Abstract

In the present work, the Total Focusing Method (TFM) is used to image defects in a High Density Polyethylene (HDPE) pipe. The viscoelastic attenuation of this material corrupts the images with a high electronic noise. In order to improve the image quality, the Decomposition of the Time Reversal Operator (DORT) filtering is combined with spatial Walsh-Hadamard coded transmissions before calculating the images. Experiments on a complex HDPE joint demonstrate that this method improves the signal-to-noise ratio by more than 40 dB in comparison with the conventional TFM.

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Keywords

[PHYS] Physics [physics]

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
bronze