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Green's Function Extraction by Crosscorrelation and Multidimensional Deconvolution for Outdoor Sound Propagation

Green's Function Extraction by Crosscorrelation and Multidimensional Deconvolution for Outdoor Sound Propagation

Max F Denis, Sandra L Collier, John M Noble, W C Kirkpatrick Alberts 2nd, David A Ligon, Leng K Sim, Deryck James, Christian G Reiff

J Acoust Soc Am. 2018 Oct;144(4):EL353.

PMID: 30404488

Abstract:

In this work, the Green's function is estimated from outdoor measurements of controlled-sources. Crosscorrelation and multidimensional deconvolution have successfully been employed for Green's function retrieval. Crosscorrelation assumes a lossless medium and equipartitioned wavefield; when these assumptions are not satisfied it may result in a Green's function smeared with the source point-spread function. Multidimensional deconvolution removes the point-spread function from the retrieved Green's function. Both methods are employed to estimate the Green's function between two array stations for a single and multiple controlled-sources. The results demonstrate that the source-to-center radius has a negligible effect on the retrieved Green's function, if the source-to-center radius is larger than the distance between the two array stations.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP3087169	Green S		3087-16-9	Price

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