Article

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

Department of Geotechnology, Delft University of Technology, PO Box 5048, 2600 GA Delft, The Netherlands.
The Journal of the Acoustical Society of America (impact factor: 1.55). 12/2010; 128(6):EL366-71. DOI:10.1121/1.3509797 pp.EL366-71
Source: PubMed

ABSTRACT 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.

0 0
 · 
0 Bookmarks
 · 
43 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

Green's function
 
Green's function retrieval
 
intrinsic losses
 
MDD
 
measurements
 
Multidimensional deconvolution
 
receivers
 
source distribution
 
space-time point-spread function
 
traditional crosscorrelation method
 
unified representation
 

Kees Wapenaar