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Low frequency seabed scattering at low grazing angles
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10.1121/1.3693645
/content/asa/journal/jasa/131/4/10.1121/1.3693645
http://aip.metastore.ingenta.com/content/asa/journal/jasa/131/4/10.1121/1.3693645
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Flow chart of seabed-dominated reverberation in shallow water.

Image of FIG. 2.
FIG. 2.

(Color online) Comparison of the LF field-inverted seabed acoustic parameters with the Biot model (Ref. 9): (a) sound attenuation, (b) sound speed.

Image of FIG. 3.
FIG. 3.

(Color online) The seabed reflection loss factor Q as a function of frequency for sandy bottoms, derived from the LF field measurements.

Image of FIG. 4.
FIG. 4.

(Color online) Sound velocity profiles at four sites for reverberation measurements.

Image of FIG. 5.
FIG. 5.

(Color online) Reverberation level vs frequency from 4 sites: (a) at 2 s; (b) at 4 s.

Image of FIG. 6.
FIG. 6.

(Color online) The Lambert’s scattering coefficient derived from the Biot model and RLs at (a) 2 s, (b) 4 s.

Image of FIG. 7.
FIG. 7.

(Color online) Angular and frequency dependence of the reverberation-derived BBS from the YS Site I. (a). BBS vs angle for eight frequencies, (b) BBS vs frequency at 4°, 6°, 8°, and 10°.

Image of FIG. 8.
FIG. 8.

(Color online) Angular and frequency dependence of the reverberation-derived BBS from the ECS Site I. (a). BBS vs angle for ten frequencies, (b) BBS vs frequency at 4°, 6°, 8°, and 10°.

Image of FIG. 9.
FIG. 9.

(Color online) Angular and frequency dependence of the reverberation-derived BBS from the ASIAEX01 Site I. (a). BBS vs angle for fourteen frequencies, (b) BBS vs frequency at 4°, 6°, 8°, and 10°.

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/content/asa/journal/jasa/131/4/10.1121/1.3693645
2012-04-12
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low frequency seabed scattering at low grazing angles
http://aip.metastore.ingenta.com/content/asa/journal/jasa/131/4/10.1121/1.3693645
10.1121/1.3693645
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