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Utilizing a modified impedance analogy on sound propagation past a hard, curved, rough surface
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10.1121/1.2216767
/content/asa/journal/jasa/120/3/10.1121/1.2216767
http://aip.metastore.ingenta.com/content/asa/journal/jasa/120/3/10.1121/1.2216767

Figures

Image of FIG. 1.
FIG. 1.

Geometry for the problem at hand.

Image of FIG. 2.
FIG. 2.

Insertion loss along the surface at (a) and (b) . Data over the rough surface are presented as solid circles and is the top of the surface. The theory for the smooth surface is the dotted line while the squares are the measured data. The theory utilizing the standard rough-impedance analogy is the dashed line. The newly proposed model using a modified admittance of roughness parameter (best fit for each frequency) is the solid line.

Image of FIG. 3.
FIG. 3.

Insertion loss along the line of sight at (a) and (b) . Data over the rough surface are presented as solid circles and is the top of the surface. The theory for the smooth surface is the dotted line while the squares are the measured data. The theory utilizing the standard rough-impedance analogy is the dashed line. The newly proposed model using a modified admittance or roughness parameter (best fit for each frequency) is the solid line.

Image of FIG. 4.
FIG. 4.

Insertion loss along vertical at in the shadow zone at (a) and (b) . Data over the rough surface are presented as solid circles and is on the surface while is the shadow-bright boundary. The theory for the smooth surface is the dotted line while the squares are the measured data. The theory utilizing the standard rough-impedance analogy is the dashed line. The newly proposed model using a modified admittance or roughness parameter (best fit for each frequency) is the solid line.

Tables

Generic image for table
TABLE I.

Optimum values of to fit data.

Generic image for table
TABLE II.

Dependence of on .

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/content/asa/journal/jasa/120/3/10.1121/1.2216767
2006-09-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Utilizing a modified impedance analogy on sound propagation past a hard, curved, rough surface
http://aip.metastore.ingenta.com/content/asa/journal/jasa/120/3/10.1121/1.2216767
10.1121/1.2216767
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