Quantification of a multibeam sonar for fisheries assessment applications

被引：31
作者：
Cochrane, NA
Li, Y
Melvin, GD
机构：
[1] Fisheries & Oceans Canada, Bedford Inst Oceanog, Ocean Sci Div, Dartmouth, NS B2Y 4A2, Canada
[2] Univ New Brunswick, Dept Geodesy & Geomat Engn, Ocean Mapping Grp, Fredericton, NB E3B 5A3, Canada
[3] Fisheries & Oceans Canada, St Andrews Biol Stn, Marine Fish Div, St Andrews, NB E5B 2L9, Canada
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2003年 / 114卷 / 02期
关键词：
D O I：
10.1121/1.1587151
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The acoustic theory is developed for a multibeam fisheries-type sonar employing a circular arc of transducer elements. Specifically, numerical relations for transmit and receive beam patterns are derived and methodologies set forth for the derivation of appropriately scaled acoustic target strength and acoustic volume backscattering strength from an ideally performing multibeam device. Predicted and measured beam characteristics of a realizable multibeam sonar, a Kongsberg Simrad-Mesotech SM 2000, are compared. Practical techniques for the extraction of calibrated acoustic volume backscattering strength from real systems are advanced. (C) 2003 Acoustical Society of America.
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收藏
页码：745 / 758
页数：14
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