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Near-field to far-field projection algorithm for free-field or buried scatterer
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10.1121/1.4773860
/content/asa/journal/jasa/133/2/10.1121/1.4773860
http://aip.metastore.ingenta.com/content/asa/journal/jasa/133/2/10.1121/1.4773860
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Geometry.

Image of FIG. 2.
FIG. 2.

(Color online) Comparisons between experimentally and numerically generated monostatic target strength produced by a sphere in the near-field, shown on the left. Comparisons of the projected monostatic far-field values compared to numerically generated far-field, shown on the right.

Image of FIG. 3.
FIG. 3.

(Color online) Five-inch rocket used for the simulations.

Image of FIG. 4.
FIG. 4.

(Color online) Top left: near-field target strength (in dB) at 10 kHz; top right: near-field target strength including noise (in dB); bottom left: far-field target strength (in dB); bottom right: projected far-field target strength (in dB).

Image of FIG. 5.
FIG. 5.

(Color online) Real and imaginary parts of the computed field, shown on the left, compared to the real and imaginary parts of the projected field, shown on the right at a frequency of 10 kHz. A linear scale is used in all four plots.

Image of FIG. 6.
FIG. 6.

(Color online) The source distribution that would produce the field shown in Figs. 4 and 5 using a linear scale.

Image of FIG. 7.
FIG. 7.

(Color online) Top left: near-field target strength (in dB) at 15 kHz; top right: near-field target strength including noise (in dB); bottom left: far-field target strength (in dB); bottom right: projected far-field target strength (in dB).

Image of FIG. 8.
FIG. 8.

(Color online) Real and imaginary parts of the computed field, shown on the left, compared to the real and imaginary parts of the projected field, shown on the right at a frequency of 15 kHz. A linear scale is used in all four plots.

Image of FIG. 9.
FIG. 9.

(Color online) The source distribution that would produce the field shown in Figs. 7 and 8 using a linear scale.

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/content/asa/journal/jasa/133/2/10.1121/1.4773860
2013-01-30
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Near-field to far-field projection algorithm for free-field or buried scatterer
http://aip.metastore.ingenta.com/content/asa/journal/jasa/133/2/10.1121/1.4773860
10.1121/1.4773860
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