A representation for Green's function retrieval by multidimensional deconvolution.

A representation for Green's function retrieval by multidimensional deconvolution.
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通过多维反卷积进行格林函数检索的表示。

DOI:
10.1121/1.3509797
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发表时间:
2010
期刊:
The Journal of the Acoustical Society of America
影响因子:
--
通讯作者:
J. van der Neut
J. van der Neut
中科院分区:
--
文献类型:
--
作者:
K. Wapenaar;J. van der Neut

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互相关法提取格林函数存在光源分布不规则、光照不对称、本征损失等问题。多维反褶积(MDD)可以克服这些限制。提出了基于MDD的格林函数检索的统一表示。由此可见,传统的互相关法给出了一个格林函数,其源在空间和时间上都是模糊的。这种涂抹是由一个时空点扩展函数(PSF)量化的,它可以从一组接收器的测量中检索到。MDD删除了这个PSF,从而消除了通过相关性获得的格林函数的来源。
Green's function retrieval by crosscorrelation may suffer from irregularities in the source distribution, asymmetric illumination, intrinsic losses, etc. Multidimensional deconvolution (MDD) may overcome these limitations. A unified representation for Green's function retrieval by MDD is proposed. From this representation, it follows that the traditional crosscorrelation method gives a Green's function of which the source is smeared in space and time. This smearing is quantified by a space-time point-spread function (PSF), which can be retrieved from measurements at an array of receivers. MDD removes this PSF and thus deblurs and deghosts the source of the Green's function obtained by correlation.
DOI: --
发表时间: 2022
期刊:
影响因子: --
作者:
Sakane Fumio;Hoshino Fumi;Murakami Chiaki;植松 祐真
通讯作者: 植松 祐真