Acoustic imaging method and device for detecting linearly combined reverberated waves via decoding matrices
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United States of America Patent
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Mar 23, 2021
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Sep 28, 2017
app pub date -
Sep 25, 2015
filing date -
Sep 26, 2014
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Abstract
According to the invention, n incident acoustic waves Ei(t), obtained by linearly combining n elemental incident waves E0i(t) with an encoding matrix Hc are consecutively transmitted in a medium to be imaged. n reverberated waves Ri(t) from the medium to be imaged are then consecutively detected, following the transmission of the n incident waves; then n elemental reverberated waves R0i(t) are determined by linearly combining the detected n reverberated waves Ri(t) with a decoding matrix Hd. The Hc and Hd matrices are such that Hc·Hd=D, where D is a diagonal matrix of order n, all the diagonal elements of which are greater than 1.
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