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Utilizing an extended target for hig...

Heaton, John Langdon, IV.

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Utilizing an extended target for high frequency multi-beam sonar intensity calibration.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Utilizing an extended target for high frequency multi-beam sonar intensity calibration./
作者:	Heaton, John Langdon, IV.
面頁冊數:	76 p.
附註:	Source: Masters Abstracts International, Volume: 53-06.
Contained By:	Masters Abstracts International53-06(E).
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1526046
ISBN:	9781321340037

Utilizing an extended target for high frequency multi-beam sonar intensity calibration.
Heaton, John Langdon, IV.

Utilizing an extended target for high frequency multi-beam sonar intensity calibration. - 76 p.

Source: Masters Abstracts International, Volume: 53-06.

Thesis (M.S.)--University of New Hampshire, 2014.

This item must not be sold to any third party vendors.

There exists an interest in expediting intensity calibration procedures for Multi-Beam Echo-Sounders (MBES) to be used for acoustic backscatter measurements. Current calibration methods are time-consuming and complicated, utilizing a target that is different from the seafloor. A target of irregularly oriented chain links arranged in a 'curtain' was constructed to simulate an extended surface, like the seafloor. Tests with a 200-kHz SIMRAD EK60 Split-Beam Echo-Sounder (SBES) to investigate the targets scattering strength were performed. These tests suggest that the scattering strength depends on the number of scattering elements. A 200 kHz Reson SeaBat T20-P MBES was calibrated with the same target. This MBES was rotated so that all beams were incident on the target. The final output is a beam-dependent calibration coefficient determined from the sonar equation. The T20-P was then used to collect backscatter in the field along a local survey line, where data were compared to the EK60.

ISBN: 9781321340037Subjects--Topical Terms:

649730
Mechanical engineering.

Utilizing an extended target for high frequency multi-beam sonar intensity calibration.
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245 1 0 $a Utilizing an extended target for high frequency multi-beam sonar intensity calibration.
300 $a 76 p.
500 $a Source: Masters Abstracts International, Volume: 53-06.
500 $a Adviser: Thomas Weber.
502 $a Thesis (M.S.)--University of New Hampshire, 2014.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a There exists an interest in expediting intensity calibration procedures for Multi-Beam Echo-Sounders (MBES) to be used for acoustic backscatter measurements. Current calibration methods are time-consuming and complicated, utilizing a target that is different from the seafloor. A target of irregularly oriented chain links arranged in a 'curtain' was constructed to simulate an extended surface, like the seafloor. Tests with a 200-kHz SIMRAD EK60 Split-Beam Echo-Sounder (SBES) to investigate the targets scattering strength were performed. These tests suggest that the scattering strength depends on the number of scattering elements. A 200 kHz Reson SeaBat T20-P MBES was calibrated with the same target. This MBES was rotated so that all beams were incident on the target. The final output is a beam-dependent calibration coefficient determined from the sonar equation. The T20-P was then used to collect backscatter in the field along a local survey line, where data were compared to the EK60.
590 $a School code: 0141.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Naval engineering. $3 3173824
650 4 $a Ocean engineering. $3 660731
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710 2 $a University of New Hampshire. $3 1017788
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792 $a 2014
793 $a English
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